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Thermal Base Layers
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100% Merino Wool - Men's Midweight Long Sleeve Crew Shirt - Thermal Base Layer - Big and Tall Options - NO Itch Renewable Fabric Charcoal Gray - Large 705CGL
QUALITY MIDWEIGHT BASELAYER: 100% Merino Wool is super soft and extremely comfortable. This three season merino crew neck thermal has the versatility and warmth to make this an essential part of your outdoor gear. Made to fit sizes XS to 6XL and Tall Sizes M-Tall to 4X-Tall (4XL to 6XL and Tall sizes in Black Only) Minus33 offers the largest size selection. Outfitting anyone from the Hard-at-Work to the Hard-at-Play. PERFECT TO WEAR FOR: any adventure. That would be skiing, snowboarding, hiking, camping, or just everyday wear, This shirt is breathable so you don't have to worry about over heating or sweating through it since it has moisture wicking properties. Our crew has tagless construction so you don't have to worry about the annoyance of the unwanted itch. You can wear this long sleeve as a base layer, mid layer, or even outer layer so you can get as many uses out of it as you would like! EXPERIENCED BRAND: Although there are many copy-cats on the market today, Minus33 has been a trusted brand since 2004. We see it all – from beautiful fall leaves, to white, snowy winters, to colorful springs and summers. We’re New Englanders, plain and simple. We’ve been hiking, camping, skiing, and everything else in between since we were kids. No amount of snow keeps us down, and we only continue to thrive in the summer. IMPORTED: As the legacy of a 100+ year old USA based woolen company, Minus33 knows quality and comfort in Merino Wool. We are committed to bringing you the best Merino Wool products at a reasonable price. TECHNICAL DETAILS: 100% 18.5 Micron Merino Wool 235 g/m2 Interlock knit construction with flatlock seams. Garment Weight Size Large = 11.2 oz. (315 grams). UPF Rating 50+
£71.00
Shipping: Free
Amazon Marketplace - Minus33 Merino Wool UK

Women's Mountain Warehouse Womens/Ladies Talus Thermal Base Layer Top (Pack of 2) - Black - Size: 18 uk pvi_01pjkid4txho9w
100% Polyester. Fabric: Soft Touch. Design: Plain. Sleeve-Type: Long-Sleeved. Neckline: Round Neck. Fabric Technology: Breathable, Heat Retention, Isotherm, Lightweight, Moisture Wicking, Quick Dry. 6 UK: 33 in. 8 UK: 34 in. 10 UK: 35 in. 12 UK: 37 in. 14 UK: 39 in. 20 UK: 47 in. 22 UK: 50 in. 24 UK: 52 in. 26 UK: 54 in. 28 UK: 56 in. 18 UK: 44 in. 16 UK: 41 in.
£41.02
Shipping: Free
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Men's Mountain Warehouse Mens Talus Thermal Base Layer Set - Navy - Size: XL pvi_01k0l9rfzmfn2i
Fabric: Soft Touch. Design: Ribbed. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Fabric Technology: Breathable, Heat Retention, High Warmth, Isotherm, Lightweight, Moisture Wicking, Quick Dry. Cuffed Ankle. Contents: 1 Pants, 1 Top. XXS: 33 in. XS: 35 in. S: 37 in. M: 40 in. L: 43 in. XL: 46 in. XXL: 49 in. 3XL: 53 in. 4XL: 56 in.
£41.02
Shipping: Free
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Smartwool Women's Intraknit Thermal Merino Base Layer Crew B07N472B5R
Our slim fit is intended to follow the contours of the body Featuring Intraknit technology: Insulation, articulation, and ventilation are seamlessly integrated to amplify movement and comfort during high-intensity activities Merino Sport yarn combines the power of Merino with the durability and fast dry times of polyester Seamlessly knit mesh ventilation designed to help keep you dry and comfortable 3D mapping results in near custom fit and freedom of movement
£73.76
Shipping: Free
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Smartwool Women's Intraknit Thermal Merino Base Layer Crew B07N462R6Z
Our slim fit is intended to follow the contours of the body Featuring Intraknit technology: Insulation, articulation, and ventilation are seamlessly integrated to amplify movement and comfort during high-intensity activities Merino Sport yarn combines the power of Merino with the durability and fast dry times of polyester Seamlessly knit mesh ventilation designed to help keep you dry and comfortable 3D mapping results in near custom fit and freedom of movement
£73.62
Shipping: Free
Amazon

100% Merino Wool - Men's Midweight Long Sleeve Crew Shirt - Thermal Base Layer - Big and Tall Options - NO Itch Renewable Fabric - Black - X-Large Tall 705XLT
QUALITY MIDWEIGHT BASELAYER: 100% Merino Wool is super soft and extremely comfortable. This three season merino crew neck thermal has the versatility and warmth to make this an essential part of your outdoor gear. Made to fit sizes XS to 6XL and Tall Sizes M-Tall to 4X-Tall (4XL to 6XL and Tall sizes in Black Only) Minus33 offers the largest size selection. Outfitting anyone from the Hard-at-Work to the Hard-at-Play. PERFECT TO WEAR FOR: any adventure. That would be skiing, snowboarding, hiking, camping, or just everyday wear, This shirt is breathable so you don't have to worry about over heating or sweating through it since it has moisture wicking properties. Our crew has tagless construction so you don't have to worry about the annoyance of the unwanted itch. You can wear this long sleeve as a base layer, mid layer, or even outer layer so you can get as many uses out of it as you would like! EXPERIENCED BRAND: Although there are many copy-cats on the market today, Minus33 has been a trusted brand since 2004. We see it all – from beautiful fall leaves, to white, snowy winters, to colorful springs and summers. We’re New Englanders, plain and simple. We’ve been hiking, camping, skiing, and everything else in between since we were kids. No amount of snow keeps us down, and we only continue to thrive in the summer. IMPORTED: As the legacy of a 100+ year old USA based woolen company, Minus33 knows quality and comfort in Merino Wool. We are committed to bringing you the best Merino Wool products at a reasonable price. TECHNICAL DETAILS: 100% 18.5 Micron Merino Wool 235 g/m2 Interlock knit construction with flatlock seams. Garment Weight Size Large = 11.2 oz. (315 grams). UPF Rating 50+
£90.00
Shipping: Free
Amazon Marketplace - Minus33 Merino Wool UK

Men's Regatta Professional Mens Long-Sleeved Thermal Base Layers - Blue - Size: 3XL pvi_00xqr1p385gol3
50% Polyester, 50% Cotton. Fabric: Brushed, Coolweave. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Cuff: Ribbed. 205gsm. XS: 36 in. S: 38 in. M: 40 in. L: 42 in. XL: 44 in. XXL: 48 in. 3XL: 51 in.
£19.24
Shipping: Free
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Men's Regatta Professional Mens Long-Sleeved Thermal Base Layers - Blue - Size: 3/3.5/2.5 pvi_0062fm1fe5vmix
50% Polyester, 50% Cotton. Fabric: Brushed, Coolweave. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Cuff: Ribbed. 205gsm. XS: 36 in. S: 38 in. M: 40 in. L: 42 in. XL: 44 in. XXL: 48 in. 3XL: 51 in.
£19.24
Shipping: Free
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Men's Regatta Professional Mens Long-Sleeved Thermal Base Layers - White - Size: 3XL pvi_03r963ua8nhk27
50% Polyester, 50% Cotton. Fabric: Brushed, Coolweave. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Cuff: Ribbed. 205gsm. XS: 36 in. S: 38 in. M: 40 in. L: 42 in. XL: 44 in. XXL: 48 in. 3XL: 51 in.
£19.24
Shipping: Free
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Trespass Mens Adults Unisex Unify Thermal Base Layer Top - Navy - Size X-Large 96e06637-3955-4ce0-807a-0cf303279480
The Unify adults base layer top has been crafted using a cotton rich material, giving it a super soft feel you`ll love to wear. The construction ensures insulated warmth, while reinforced seams give superior durability at the joints. This base layer is ideal for colder climates and seasons. Material: 60% Cotton, 40% Polyester. Trespass Mens Chest Sizing (approx): S - 35-37in/89-94cm, M - 38-40in/96.5-101.5cm, L - 41-43in/104-109cm, XL - 44-46in/111.5-117cm, XXL - 46-48in/117-122cm, 3XL - 48-50in/122-127cm.
Standard Delivery
£13.78
Shipping: £2.99
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Men's Mountain Warehouse Mens Talus Thermal Base Layer Set - Grey - Size: L pvi_03f8x4i9da1us2
Fabric: Soft Touch. Design: Ribbed. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Fabric Technology: Breathable, Heat Retention, High Warmth, Isotherm, Lightweight, Moisture Wicking, Quick Dry. Cuffed Ankle. Contents: 1 Pants, 1 Top. XXS: 33 in. XS: 35 in. S: 37 in. M: 40 in. L: 43 in. XL: 46 in. XXL: 49 in. 3XL: 53 in. 4XL: 56 in.
£41.02
Shipping: Free
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Carhartt Men's Carhartt Force Midweight Classic Thermal Base Layer Long Sleeve Shirt Top, Navy, XL Tall B07MK3Z1XS
Equipped with Force technology to wick away sweat and dry quickly; FastDry wicks sweat Fights odor; strategically placed flatlock seams reduce chafing Concealed thumb loop; locker loops Tagless labels If your measurement is between sizes on the size chart, buy the larger size
£43.41
Shipping: Free
Amazon

Women's Mountain Warehouse Womens/Ladies Asgard Merino Wool Thermal Base Layer Leggings - Purple - Size: 10 pvi_01m0n9ars2mzki
70% Merino Wool, 30% Polyester. Design: Plain. Fabric Technology: Anti-Bacterial, Moisture Wicking, Odour Control, Quick Dry, Thermal. Waistline: Elasticated.
£44.70
Shipping: Free
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100% Merino Wool - Men's Midweight Long Sleeve Crew Shirt - Thermal Base Layer - NO Itch Renewable Fabric - Forest Green - 3XL SF-GBP-V-43905243966
QUALITY MIDWEIGHT BASELAYER: 100% Merino Wool is super soft and extremely comfortable. This three season merino crew neck thermal has the versatility and warmth to make this an essential part of your outdoor gear. Made to fit sizes XS to 6XL and Tall Sizes M-Tall to 4X-Tall (4XL to 6XL and Tall sizes in Black Only) Minus33 offers the largest size selection. Outfitting anyone from the Hard-at-Work to the Hard-at-Play. PERFECT TO WEAR FOR: any adventure. That would be skiing, snowboarding, hiking, camping, or just everyday wear, This shirt is breathable so you don't have to worry about over heating or sweating through it since it has moisture wicking properties. Our crew has tagless construction so you don't have to worry about the annoyance of the unwanted itch. You can wear this long sleeve as a base layer, mid layer, or even outer layer so you can get as many uses out of it as you would like! EXPERIENCED BRAND: Although there are many copy-cats on the market today, Minus33 has been a trusted brand since 2004. We see it all – from beautiful fall leaves, to white, snowy winters, to colorful springs and summers. We’re New Englanders, plain and simple. We’ve been hiking, camping, skiing, and everything else in between since we were kids. No amount of snow keeps us down, and we only continue to thrive in the summer. IMPORTED: As the legacy of a 100+ year old USA based woolen company, Minus33 knows quality and comfort in Merino Wool. We are committed to bringing you the best Merino Wool products at a reasonable price. TECHNICAL DETAILS: 100% 18.5 Micron Merino Wool 235 g/m2 Interlock knit construction with flatlock seams. Garment Weight Size Large = 11.2 oz. (315 grams). UPF Rating 50+
£207.77
Shipping: Free
Amazon Marketplace - GG ECOM LTD

Girl's Trespass Kids Unisex Unite360 Thermal Base Layer Set (Top And Bottoms) - Black - Size: 12 years/11 years pvi_00s65rsbadxz4o
Wicking & Quick Drying. 100% Polyester. Top: Flat Seams for Comfort, Long Sleeves, Deep Cuffs, Side Splits. Bottoms: Flat Seams for Comfort, Elasticated Waist, Deep Cuffs. Zip neck top and full length pants. The Unite360 set for kids features performance wicking fabric, and is made with a quick drying, lightweight, soft fabric that has flat lock seams and offers superior warmth.
£25.29
Shipping: Free
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Smartwool Kids' Classic Thermal Merino Base Layer Crew, BLACK, X-Small B08RGQQ3TH
Our slim fit is intended to follow the contours of the body 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odor resistance Crew neck with set-in long sleeves Flatlock seam construction designed to minimize chafing
£45.92
Shipping: Free
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Smartwool Womens Classic Thermal Merino Base Layer 3/4 Bottom, Black, M EU child-380675
Our slim fit is intended to follow the contours of the body 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odour resistance Fitted with a mid-rise waist Merino-covered elastic waistband adds comfort Flatlock seam construction designed to minimize chafing
£78.83
Shipping: Free
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Unbranded Mens Thermal Underwear>>Long johns Winter Thermal Underwear >>Compression Running Clothes >> Sport Thermal Underwear base layer
This product may be available in more colours, sizes or styles. Please contact us to check the availability of your choice. We would be happy to...
£65.99
Shipping: Free
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ZEROFIT Mens Move HEATRUB Leggings Black XL. Thermal Base Layer Bottoms., Black, XL EU B0G1CHMQ91
The Move Leggings feature a 45% polypropylene construction on the inside of the garments as well as a hollow polyester shell that work in tandem to regulate body temperature, so as athletes work harder for longer, they don’t overheat in the conditions. Designed in Japan and tested extensively with runners in varying conditions, the Heatrub Move Leggings have been independently tested and proven to provide twice as much warmth as a competitor product at the start of a run, when you’re likely to feel the cold. But then when you begin to build up a sweat, separate innovations help to keep athletes temperature regulated – Adaptable Warmth Technology (AWT) in action. This innovative design of the Heatrub Move Leggings also rid sweat from the skin and the hollow polyester design combined with the ‘LABO’ fabric ensures it evaporates off the surface of the garments quickly, so the unpleasant experience of cold sweat on the body never materialises. The two-layer construction efficiently and quickly removes sweat from the skin. Incredible freedom of movement due to the stretchable nature of the fabric. The hollow polyester design and ‘LABO’ fabric ensures it evaporates off the surface of the leggings quickly.
£45.00
Shipping: Free
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Men's Regatta Professional Mens Long-Sleeved Thermal Base Layers - Blue - Size: 5/5.5/6.5/7/6/7.5 pvi_01kraxvvysuj79
50% Polyester, 50% Cotton. Fabric: Brushed, Coolweave. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Cuff: Ribbed. 205gsm. XS: 36 in. S: 38 in. M: 40 in. L: 42 in. XL: 44 in. XXL: 48 in. 3XL: 51 in.
£19.24
Shipping: Free
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Women's Mountain Warehouse Womens/Ladies Talus Thermal Base Layer Top (Pack of 2) - Black/White - Size: 14 uk pvi_03up5k4foaqynt
100% Polyester. Fabric: Soft Touch. Design: Plain. Sleeve-Type: Long-Sleeved. Neckline: Round Neck. Fabric Technology: Breathable, Heat Retention, Isotherm, Lightweight, Moisture Wicking, Quick Dry. 6 UK: 33 in. 8 UK: 34 in. 10 UK: 35 in. 12 UK: 37 in. 14 UK: 39 in. 20 UK: 47 in. 22 UK: 50 in. 24 UK: 52 in. 26 UK: 54 in. 28 UK: 56 in. 18 UK: 44 in. 16 UK: 41 in.
£41.02
Shipping: Free
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Women's Mountain Warehouse Womens/Ladies Talus Thermal Base Layer Top (Pack of 2) - Black/White - Size: 10 uk pvi_00d6rsegtlx80c
100% Polyester. Fabric: Soft Touch. Design: Plain. Sleeve-Type: Long-Sleeved. Neckline: Round Neck. Fabric Technology: Breathable, Heat Retention, Isotherm, Lightweight, Moisture Wicking, Quick Dry. 6 UK: 33 in. 8 UK: 34 in. 10 UK: 35 in. 12 UK: 37 in. 14 UK: 39 in. 20 UK: 47 in. 22 UK: 50 in. 24 UK: 52 in. 26 UK: 54 in. 28 UK: 56 in. 18 UK: 44 in. 16 UK: 41 in.
£41.02
Shipping: Free
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Women's Mountain Warehouse Womens/Ladies Talus Thermal Base Layer Top (Pack of 2) - Black/White - Size: 12 uk pvi_013imdnv1i9lvs
100% Polyester. Fabric: Soft Touch. Design: Plain. Sleeve-Type: Long-Sleeved. Neckline: Round Neck. Fabric Technology: Breathable, Heat Retention, Isotherm, Lightweight, Moisture Wicking, Quick Dry. 6 UK: 33 in. 8 UK: 34 in. 10 UK: 35 in. 12 UK: 37 in. 14 UK: 39 in. 20 UK: 47 in. 22 UK: 50 in. 24 UK: 52 in. 26 UK: 54 in. 28 UK: 56 in. 18 UK: 44 in. 16 UK: 41 in.
£41.02
Shipping: Free
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THMO Boys Kids Thermal Base Layer Set 0195aa88-b7f1-7a72-b5e8-e1c918c16218
THMO - Kids Long Sleeved Thermal Top & Long Johns Set: Keep your child warm and cosy with the THMO Kids Long Sleeved Thermal Top & Long Johns Set. Ideal for outdoor activities or relaxing indoors, this set offers comfort and warmth. Made from soft, breathable, and lightweight fabric, it provides insulation without overheating. The set includes a long-sleeved thermal top and matching long johns, offering full coverage to keep your little one comfortable. The thermal top is designed for a comfortable fit, allowing easy movement whether worn alone or layered. The long johns feature an elastic waistband for a secure fit, ensuring flexibility and comfort. Perfect for outdoor adventures like hiking, skiing, or camping, as well as lounging at home on colder days. Available in five sizes: 3-4 Years, 5-6 Years, 7-8 Years, 9-11 Years, and 12-13 Years, the set fits various body types. Available in Black and White, it pairs easily with other clothes, offering timeless style. Extra Product Details: Material: Soft breathable fabric Sizes: 3-4 Years, 5-6 Years, 7-8 Years, 9-11 Years, 12-13 Years Colours: Black, White Includes: Thermal top and long johns Elastic waistband for secure fit Machine washable. Ideal for keeping your child warm and comfortable, indoors or outdoors, in colder weather.
Standard Delivery
£13.78
Shipping: £2.99
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Mountain Warehouse Womens Borg Lined Leggings Comfy Thermal Base Layer Bottoms Charcoal - Size Small 019dcffb-022b-7678-a59d-043abbf4a74a
How Our Pricing Works: At Mountain Warehouse we’ve always worked hard to offer our customers amazing value for money. We do this by carefully designing our own brand products and then having them manufactured to our exacting standards, often in the same factories as other more expensive brands. We then cut out the middleman, selling direct to our customers through our own stores and websites and pass the savings on to you. Sometimes we utilise a ‘comparable price’ which is the price our buying and sourcing teams believe a product of comparable quality would be offered at full retail price by other leading brands. It is not intended to reflect a former price at which the product has sold. You can view more information on how this works on our website. ● Add a layer of warmth to your outfit with our Borg Fleece Lined Women's Thermal Leggings. Lightweight and comfortable, these leggings are perfect as a base layer underneath trousers and will keep you feeling warm in colder months. Featuring a soft thermal lining and Isotherm technology, they provide cosy warmth without bulk. (Ref: 057158)
Standard Delivery
£14.99
Shipping: £2.99
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Men's Regatta Professional Mens Long-Sleeved Thermal Base Layers - Blue - Size: 3/3.5/2.5 pvi_01vghn0jts7m2l
50% Polyester, 50% Cotton. Fabric: Brushed, Coolweave. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Cuff: Ribbed. 205gsm. XS: 36 in. S: 38 in. M: 40 in. L: 42 in. XL: 44 in. XXL: 48 in. 3XL: 51 in.
£19.24
Shipping: Free
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Smartwool Classic All-Season Merino Wool Thermal Leggings, Women's Thermal Base Layer Trousers, Ladies Sports Leggings, Lightweight & Breathable Natural Merino Ladies' Clothing - Black, M B0BSLHHSB7
Classic all-season ladies leggings: Slim fitting women's thermal trousers, ideal for layering in winter and cold weather, designed for comfort and fit following the contours of the body Natural merino wool blend: Made of lightweight ZQ-certified merino wool yarn with stretch jersey feel and flatlock seams to minimise chafing. Soft knit for breathability, thermoregulation and odour resistance Sport, winter and ski clothes: Our thermal base layers are ideal for wearing underneath skiing trousers, or worn on their own as casual leggings, ski leggings for women or gym leggings for women Stylish finish: The ladies' thermal bottoms features improved comfort and fit for a range of different body shapes, and our women's clothes are designed to offer unrivalled softness and performance Go Far. Feel Good. Complete your winter wardrobe and create a cosy thermal layering system with Smartwool's merino wool technology, for ultimate all-season comfort all day long
£51.94
Shipping: Free
Amazon

Smartwool Men's Classic Thermal Merino Base Layer Bottom, Black, XX-Large B08BDLRJS8
Our slim fit is intended to follow the contours of the body Fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% Merino wool with interlock knit for comfort Flatlock seam construction designed to help increase comfort and minimize chafing Fully functional fly Merino-lined elastic waistband designed for comfort; 100% Merino next to skin
£70.58
Shipping: Free
Amazon

Smartwool Women's Classic Thermal Merino Base Layer 1/4 Zip B08BDG2CH2
Our slim fit is intended to follow the contours of the body 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odour resistance Back body seam wraps to front for body-enhancing fit Raglan sleeves Flatlock seam construction designed to minimize chafing
£89.61
Shipping: Free
Amazon

Smartwool Men's Intraknit Thermal Merino Base Layer Bottom, Black/White, L B0B7ZXGXZH
Our slim fit is intended to follow the contours of the bodyFeaturing Intraknit technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high-intensity activities Merino Sport yarn combines the power of Merino with polyester Seamlessly knit mesh ventilation 3D mapping results in near custom fit and freedom of movement
£89.72
Shipping: Free
Amazon

Unbranded Men Lightning Thermal Underwear Set Long johns Winter Thermal Underwear Winter exercise base layer thermal Compression suit
This product may be available in more colours, sizes or styles. Please contact us to check the availability of your choice. We would be happy to...
£58.99
Shipping: Free
OnBuy

Smartwool Women's Classic Thermal Merino Base Layer 1/4 Zip, Black, Medium B0CX6VYQHR
Our slim fit is intended to follow the contours of the body Fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% Merino wool with interlock knit for comfort Raglan sleevesBack body seam wraps to front Raglan sleeves Flatlock seam construction designed to help increase comfort and minimize chafing
£91.58
Shipping: Free
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