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Men's technical clothing
Thermal underwear/base layers
Base layer/thermal tops

Men's thermal base layer tops

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M Merino 200 Oasis LS Crewe Midnight Navy

Icebreaker

M Merino 200 Oasis LS Crewe Midnight Navy

Merino wool base layer – Men’s – M Merino 200 Oasis LS Crewe - Icebreaker – 2027

£80.90
£89.90
-10%
VAT and custom duties included

Available colours:

Black
Grey
White
Blue
Burgundy
Green
Khaki
New
Eco-friendly
BL Top Crew Neck LS Active Warm M White

Odlo

BL Top Crew Neck LS Active Warm M White

Technical base layer - Men - Active Warm Eco - Odlo - Autumn-Winter 2023/2024

£53.90
£59.90
-10%
VAT and custom duties included

Available colours:

White
Black
Black
Grey
Grey
New
M Merino 200 Oasis LS Crewe Gritstone Heather

Icebreaker

M Merino 200 Oasis LS Crewe Gritstone Heather

Merino wool base layer – Men’s – M Merino 200 Oasis LS Crewe - Icebreaker – 2027

£80.90
£89.90
-10%
VAT and custom duties included

Available colours:

Black
Navy
White
Blue
Burgundy
Green
Khaki
New
Eco-friendly
Active Warm Baselayer Top Turtle Neck Half Zip M Odlo Steel Grey Melange

Odlo

Active Warm Baselayer Top Turtle Neck Half Zip M Odlo Steel Grey Melange

Long-sleeve zipped technical base layer - Men - Active Warm Eco 1/2 Zip - Odlo - Autumn-Winter 2023/2024

£57.90
£64.90
-11%
VAT and custom duties included

Available colours:

Black
Black
New
Zoé's favouriteM Merino 200 Oasis LS Crewe Midnight Navy

Icebreaker

M Merino 200 Oasis LS Crewe Midnight Navy

Merino wool base layer – Men’s – M Merino 200 Oasis LS Crewe - Icebreaker – 2027

£80.90
£89.90
-10%
VAT and custom duties included

Available colours:

Black
Grey
White
Blue
Burgundy
Green
Khaki
New
Lifa Merino Midweight 1/2 Zip Navy

Helly-Hansen

Lifa Merino Midweight 1/2 Zip Navy

Merino wool thermal base layer - Men's - Lifa Merino Midweight 1/2 Zip - Helly Hansen 2026

£99.90
VAT and custom duties included

Available colours:

Black
Green
New
Eco-friendly
BL Top Crew Neck LS Active Warm M Odlo Steel Grey Melange

Odlo

BL Top Crew Neck LS Active Warm M Odlo Steel Grey Melange

Technical base layer - Men - Active Warm Eco - Odlo - Autumn-Winter 2023/2024

£53.90
£59.90
-10%
VAT and custom duties included

Available colours:

White
Black
White
Black
Grey
New
Lifa Merino Midweight Crew Navy

Helly-Hansen

Lifa Merino Midweight Crew Navy

Merino wool thermal Layer - Men's - Lifa Merino Midweight Crew - Helly Hansen - 2026

£89.90
VAT and custom duties included

Available colours:

Green
New
M Merino 200 Oasis LS Half Zip Gritstone Heather

Icebreaker

M Merino 200 Oasis LS Half Zip Gritstone Heather

Merino wool base layer – Men’s – M Merino 200 Oasis LS Half Zip - Icebreaker – 2027

£84.90
£94.90
-11%
VAT and custom duties included

Available colours:

Navy
Black
Burgundy
Green
New
Trilogy Jorasses Wool Stretch M Black

Millet

Trilogy Jorasses Wool Stretch M Black

Insulating wool suit - Men - Trilogy Jorasses Wool Stretch M - Millet - 2027

£279.90
VAT and custom duties included
New
Lifa Active Crew Navy

Helly-Hansen

Lifa Active Crew Navy

Warm and breathable Base layers - Men's - Lifa Active Crew - Helly Hansen - 2026

£54.90
VAT and custom duties included

Available colours:

Black
White
20% off

20% off

On the entire city section* with the code CITY20*

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*Conditions

New
Energy Accumulator 4.0 Shirt LG SL M Marine/Optical

X-Bionic

Energy Accumulator 4.0 Shirt LG SL M Marine/Optical

Technical long-sleeve T-shirt - Men - Energy Accumulator 4.0 Shirt LG LS M - X-Bionic - 2027

£134.76
VAT and custom duties included
New
M Merino 260 ZoneKnit™ LS Crewe Jet Heather

Icebreaker

M Merino 260 ZoneKnit™ LS Crewe Jet Heather

Merino wool base layer – Men’s – M Merino 260 ZoneKnit™ LS Crewe - Icebreaker – 2027

£111.90
£124.90
-10%
VAT and custom duties included
New
Symbio Merino Shirt LS M Rhino Grey

X-Bionic

Symbio Merino Shirt LS M Rhino Grey

Technical merino wool T-shirt - Men - Symbio Merino Shirt LS M - X-Bionic - 2027

£156.51
VAT and custom duties included
New
M Merino 260 ZoneKnit™ LS Half Zip Jet Heather

Icebreaker

M Merino 260 ZoneKnit™ LS Half Zip Jet Heather

Merino wool base layer – Men’s – M Merino 260 ZoneKnit™ LS Half Zip - Icebreaker – 2027

£120.90
£134.90
-10%
VAT and custom duties included
New
185 Rock'N'Wool LS M Deep Ocean

Ortovox

185 Rock'N'Wool LS M Deep Ocean

Merino wool Base layers - Men's - 185 Rock'N'Wool Long Sleeve - Ortovox - 2026

£107.90
VAT and custom duties included

Available colours:

Burgundy
Black
New
M Merino 200 Oasis LS Crewe Skiing Yeti Midnight Navy

Icebreaker

M Merino 200 Oasis LS Crewe Skiing Yeti Midnight Navy

Merino wool base layer – Men’s – M Merino 200 Oasis LS Crewe Skiing Yeti - Icebreaker – 2027

£84.90
£94.90
-11%
VAT and custom duties included

Available colours:

Khaki
Black
New
Zoé's favouriteM Merino 200 Oasis LS Crewe Gritstone Heather

Icebreaker

M Merino 200 Oasis LS Crewe Gritstone Heather

Merino wool base layer – Men’s – M Merino 200 Oasis LS Crewe - Icebreaker – 2027

£80.90
£89.90
-10%
VAT and custom duties included

Available colours:

Black
Navy
White
Blue
Burgundy
Green
Khaki
New
Expedition Merino Silk Zip M Ink/Offwhite

Devold of Norway

Expedition Merino Silk Zip M Ink/Offwhite

Men's half-zip thermal top in merino wool and silk - Expedition Merino Slik Zip - Devold - 2027

£119.90
VAT and custom duties included
New
M Merino 200 Oasis LS Crewe Skiing Yeti Dk Loden

Icebreaker

M Merino 200 Oasis LS Crewe Skiing Yeti Dk Loden

Merino wool base layer - Men's - M Merino 200 Oasis LS Crewe Skiing Yeti - Icebreaker - 2027

£84.90
£94.90
-11%
VAT and custom duties included

Available colours:

Navy
Black
FALL SALE: UP TO 50% OFF

FALL SALE: UP TO 50% OFF

On a wide selection of products*

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*Conditions

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M Classic Thermal Merino Base Layer Crew Boxed Black Tie Dye/Honey Gold

Smartwool

M Classic Thermal Merino Base Layer Crew Boxed Black Tie Dye/Honey Gold

Merino wool thermal top – Men’s – M Classic Thermal Merino Base Layer Crew Boxed - Smartwool – 2027

£99.90
VAT and custom duties included
New
M Merino 200 Oasis LS Crewe Port

Icebreaker

M Merino 200 Oasis LS Crewe Port

Merino wool base layer - Men - M Merino 200 Oasis LS Crewe - Icebreaker - 2027

£80.90
£89.90
-10%
VAT and custom duties included

Available colours:

Black
Navy
Grey
White
Blue
Green
Khaki
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Men's base layer tops

Keep your top half dry and comfortable with our large selection of men's thermal tops - long sleeved or short sleeved, we have a massive choice of designs for a range of budgets.

Why wear thermal underwear?

The base layer regulates your temperature. This effect is caused by a layer of tiny fibres lying close to the skin, trapping essential body heat, regulating air flow and wicking away sweat, to keep you from getting cold, too hot, or wet.

Synthetic base layers dry quickly and are lightweight. Each brand takes a different spin on the synthetic base layer - have a look at our selection from X-Bionic, Craft, Picture Organic Clothing and more.

Merino wool base layers are becoming increasingly popular. Merino wool is naturally breathable, regulates body temperature and has antibacterial and anti UV properties. It is also exceptionally soft and is perfect for both extremely high and low temperatures. Have a look at Icebreaker base layers on Snowleader.

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