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Thermal underwear and base layers

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Picture Briefs Florianne Poilstrusse Overview Picture Briefs Florianne Poilstrusse Back Final reductions
  • Recommended price

    £26.01

    -49%

    £13.05

The Picture Florianne Poilstrusse women's model is a comfortable, warm and breathable brief that benefits from an eco-responsible design based on recycled polyester only.

Colour
  • Picture Briefs Florianne Poilstrusse Overview
Size
  • XS
  • L
Uyn Boxer briefs Man Motyon Biotech Boxer Black Beauty Overview Uyn Boxer briefs Man Motyon Biotech Boxer Black Beauty Side
  • Recommended price

    £42.54

    -29%

    £29.78

The Uyn Man Motyon Biotech Boxer Black Beauty, designed with COOLTH_SL bio-fiber, offers maximum functionality and absolute freedom of movement during your sporting activities.

Colour
  • Uyn Boxer briefs Man Motyon Biotech Boxer Black Beauty Overview
Size
  • S-M
  • L-XL
Uyn Technical underwear Uyn Man Energyon Biotech Uw Shirt Long Black Overview Uyn Technical underwear Uyn Man Energyon Biotech Uw Shirt Long Black Side
  • Recommended price

    £86.04

    -30%

    £60.23

The Uyn Man Energyon Biotech Uw Shirt Long Black from Uyn is a high-performance technical undergarment that uses natural materials for efficient wicking and optimum comfort.

Colour
  • Uyn Technical underwear Uyn Man Energyon Biotech Uw Shirt Long Black Overview
  • Uyn Technical underwear Uyn Man Energyon Biotech Uw Shirt Long Blue Poseidon Overview
Size
  • S-M
  • L-XL
  • XXL
Soldes
Millet Technical underwear Drynamic Soft 3/4 Tight W Black Noir Overview Millet Technical underwear Drynamic Soft 3/4 Tight W Black Noir Side
  • Recommended price

    £52.11

    -33%

    £34.71

The Millet Drynamic Soft 3/4 Tight W Black Noir are lightweight, stretchy, quick-drying technical tights offering seamless comfort and freedom of movement.

Colour
  • Millet Technical underwear Drynamic Soft 3/4 Tight W Black Noir Overview
Size
  • XS-S
  • M
  • L-XL
DARE2B Sports Bra Sxift II Black Overview DARE2B Sports Bra Sxift II Black Side
  • Recommended price

    £36.54

    -52%

    £17.31

Dare2b's Sxift II Black bra combines comfort and performance with optimal moisture wicking and quick drying.

Colour
  • DARE2B Sports Bra Sxift II Black Overview
Size
  • XS
  • S
  • M
  • L
Dynafit Sports Bra Alpine Graphic Bra Jadelite Overview Dynafit Sports Bra Alpine Graphic Bra Jadelite Side Final reductions
  • Recommended price

    £52.11

    -38%

    £32.10
Colour
  • Dynafit Alpine Graphic Bra Hot Coral
  • Dynafit Sports Bra Alpine Graphic Bra Jadelite Overview
Size
  • S
  • L
Superdry Technical underwear Base Layer Legging Black Overview Superdry Technical underwear Base Layer Legging Black Back
  • Recommended price

    £47.76

    -35%

    £30.88

Superdry's Base Layer Legging Black, made from recycled materials, provides comfort, support and moisture wicking for sports activities.

Colour
  • Superdry Technical underwear Base Layer Legging Black Overview
Size
  • S
  • M
  • XL
DARE2B Sports Bra Don't Sweat It II Brassière Black Overview DARE2B Sports Bra Don't Sweat It II Brassière Black Side Final reductions
  • Recommended price

    £23.40

    -49%

    £11.75

DARE2B's Don't Sweat It II bra offers lightweight support, seamless comfort and long-lasting freshness thanks to its advanced technologies.

Colour
  • DARE2B Sports Bra Don't Sweat It II Brassière Black Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Element Grey Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Moonlight Denim Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Skyway Overview
Size
  • L
DARE2B Sports Bra Don't Sweat It II Brassière Element Grey Overview DARE2B Sports Bra Don't Sweat It II Brassière Element Grey Side Final reductions
  • Recommended price

    £23.40

    -49%

    £11.75

DARE2B's Don't Sweat It II Element Grey bra offers lightweight support, seamless comfort and long-lasting freshness thanks to its advanced technologies.

Colour
  • DARE2B Sports Bra Don't Sweat It II Brassière Black Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Element Grey Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Moonlight Denim Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Skyway Overview
Size
  • L
DARE2B Sports Bra Don't Sweat It II Brassière Moonlight Denim Overview DARE2B Sports Bra Don't Sweat It II Brassière Moonlight Denim Side Final reductions
  • Recommended price

    £23.40

    -49%

    £11.75

The Don't Sweat It II Moonlight Denim bra from DARE2B offers lightweight support, seamless comfort and long-lasting freshness thanks to its innovative technologies.

Colour
  • DARE2B Sports Bra Don't Sweat It II Brassière Black Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Element Grey Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Moonlight Denim Overview
  • DARE2B Sports Bra Don't Sweat It II Brassière Skyway Overview
Size
  • L
précommandes hiver 2026
DARE2B Technical underwear Exchange IIII Baselayer Set Olivine Green Black Overview DARE2B Technical underwear Exchange IIII Baselayer Set Olivine Green Black Side
  • Recommended price

    £47.85

    -36%

    £30.45

The Dare2B Exchange IIII Baselayer Set Olivine Green Black is a set of technical underwear made from thermal polyester, offering warmth, comfort and efficient moisture management.

Colour
  • DARE2B Technical underwear Exchange IIII Baselayer Set Olivine Green Black Overview
Size
  • L
  • XL
DARE2B In The Zone II 3/4 Bottoms Black DARE2B In The Zone II 3/4 Bottoms Black
  • Recommended price

    £26.01

    -50%

    £12.96

The DARE2B In The Zone II 3/4 Bottoms Black are innovative, ergonomic sports leggings with SeamSmart technology, soft-touch fabric, quick-drying, and anti-bacterial odour control.

Colour
  • DARE2B In The Zone II 3/4 Bottoms Black
Size
  • S
  • L
Picture Technical underwear Milita Printed Blurry Water Print Overview Picture Technical underwear Milita Printed Blurry Water Print Back Final reductions
  • Recommended price

    £65.25

    -54%

    £29.41

-

Colour
  • Picture Technical underwear Milita Printed Blurry Water Print Overview
  • Picture Technical underwear Milita Printed Freeze Overview
  • Picture Technical underwear Milita Printed Textury Print Overview
Size
  • XS
  • S
  • L
Picture Technical underwear Milita Printed Textury Print Overview Picture Technical underwear Milita Printed Textury Print Back Final reductions
  • Recommended price

    £65.25

    -54%

    £29.41

-

Colour
  • Picture Technical underwear Milita Printed Blurry Water Print Overview
  • Picture Technical underwear Milita Printed Freeze Overview
  • Picture Technical underwear Milita Printed Textury Print Overview
Size
  • XS
  • S
Picture Nangha Top Ponderosa Pine Picture Nangha Top Ponderosa Pine Final reductions
  • Recommended price

    £65.25

    -54%

    £29.41

-

Colour
  • Picture Technical underwear Nangha Top Black Overview
  • Picture Nangha Top Ponderosa Pine
Size
  • S
  • M
  • XL
La Sportiva Sunfire T-Shirt M Night Sky Savana La Sportiva Sunfire T-Shirt M Night Sky Savana Final reductions
  • Recommended price

    £39.06

    -38%

    £23.84

The La Sportiva Sunfire T-Shirt M is a lightweight, breathable, and eco-friendly base layer with efficient moisture-wicking, quick-drying, and odour-reducing features.

Colour
  • La Sportiva Sunfire T-Shirt M Night Sky Savana
  • La Sportiva Sunfire T-Shirt M Savana Night Sky
Size
  • S
  • XL
La Sportiva Sunfire T-Shirt M Savana Night Sky La Sportiva Sunfire T-Shirt M Savana Night Sky Final reductions
  • Recommended price

    £39.06

    -38%

    £23.84

The La Sportiva Sunfire T-Shirt M is a lightweight, breathable, eco-friendly base layer with efficient moisture wicking, quick drying, and odour-minimising Polygiene® finish.

Colour
  • La Sportiva Sunfire T-Shirt M Night Sky Savana
  • La Sportiva Sunfire T-Shirt M Savana Night Sky
Size
  • M
  • L
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Thermal Base Layer Buyer’s Guide

The thermal base layer is the first element of a skier’s or snowboarder’s gear. Acting as a warm and discreet second skin, it ensures all-day comfort. Long-sleeve tops and tights protect you from head to toe—simply layer on a fleece and a technical winter jacket to be perfectly prepared.

There’s a wide range of synthetic and natural materials tailored to all types of sports. Every year, manufacturers compete to develop innovative thermal base layers designed for both skiing and mountain hiking. At Glisshop, you’ll find a full range of thermal base layers and hiking apparel to complete your outfit and enjoy optimal warmth.

Key Features of Cold-Weather Base Layers

Though seemingly minor, the thermal base layer plays a crucial role. It regulates your body temperature and wicks sweat away during activity, ensuring you stay warm even after physical exertion. The textiles used are soft for direct skin contact and highly breathable to promote evaporation. Ideally, the thermal layer should remain dry or dry quickly. To achieve this, major outdoor brands from Chamonix, the U.S., and Nordic countries use advanced synthetic fibres or premium merino wool. For absolute comfort and maximum warmth, choose models with flat, ergonomic seams that won’t cause irritation, even with repeated friction—pure bliss!

Getting the Most Out of Your Men’s or Women’s Base Layer

If you’ve chosen a long-sleeve t-shirt, synthetic tights, or long johns, remember to wash them regularly to prevent odours. As for merino wool garments, they can be machine washed at the end of the week, provided the temperature doesn’t exceed 30°C, and spin cycles are kept gentle. Get the most of your ski season with Glisshop by completing your ski outfit with quality garments from brands like Adidas, Bjorn Daehlie, Bula, Craft, Eivy, Falke, Gore, Icepeak, Kari Traa, Maloja, Odlo, Patagonia, Picture Organic Clothing, Protest, Rossignol, Superdry, and Swix!

What Is the Best Thermal Base Layer: Synthetic Fibre or Merino Wool?

Synthetic fabrics are often lighter than their wool counterparts. They offer comparable breathability and are more affordable. However, while they dry very quickly, they tend to develop unpleasant odours quickly due to perspiration.

Merino wool, known for its softness, has excellent moisture absorption and also dries quickly. Another key advantage is its natural antibacterial property, which prevents the development of bad odours caused by sweat. This makes it an ideal choice for reducing the number of garments needed and wearing the same item for multiple days, particularly useful for trekking. If you’d like to learn more about this material, we invite you to check out our Merino wool guide, where we discuss its advantages and disadvantages in detail.