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Underwear
Men's Underwear & Underlayers
For any outdoor activity, what you wear next to the skin can make all the difference to your comfort. At Decathlon you’ll find a range of breathable and insulating men’s underwear, underlayers and base layers to layer up correctly.
Thermal Underwear
Socks
Briefs
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Filters (1)
185 items
Most relevant
product nature
socks
67
long-sleeved base layer
36
base layer
26
baselayer bottom
26
boxer shorts
9
short-sleeved base layer
8
undershorts
8
sleeveless base layer
2
base layer shirt
1
briefs
1
See all
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103
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56
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54
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51
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36
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21
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14
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10
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8
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8
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BRIDGEDALE
21
CRAFT
17
TCA
12
1000 MILE
11
WEDZE
10
HEAT HOLDERS
9
KIPSTA
9
STANCE
8
ODLO
6
CANTERBURY
5
See all
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Maximum
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52
Sock Snob UK
29
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22
Bowls4u T/A 4U Trading Group
20
Craft
17
Thorogood Sports Ltd
12
Urban Surfer
8
Regatta Ltd UK
6
Rugby Heaven
6
Baselayer Ltd
5
See all
sizes
L
L
185
M
177
S
143
XL
116
2XL
103
UK 2.5-5 : EU 35-38
79
UK 8.5-11 : EU 43-46
76
UK 5.5-8 : EU 39-42
70
XS
66
UK 12-14 : EU 47-50
62
See all
Clear all (1)
Gallery item 1 out of 6
KALENJI Men's Breathable microfibre boxers - Bronze
4.5
24633
Rate: 4.5 stars, 24633 votes
6 colors
£1.99
Out of stock
Gallery item 1 out of 2
WEDZE Men's ski base layer top - BL 100 - Black
4.6
9499
Rate: 4.6 stars, 9499 votes
2 colors
£5.99
£7.99
WEDZE M Ski Thermal Base Layer Bottoms - BL 100 - Black
4.6
4509
Rate: 4.6 stars, 4509 votes
£5.99
£7.99
Gallery item 1 out of 2
KIPSTA Adult Long-Sleeved Thermal Football Base Layer Top Keepcomfort 100 - Black
4.6
996
Rate: 4.6 stars, 996 votes
2 colors
£9.99
DECATHLON Men's Breathable Microfibre Boxers Tri-Pack - Dark Blue/Blue/Khaki
£14.99
Was £17.99
Gallery item 1 out of 2
KIPSTA Adult Football Undershorts Keepcomfort - Black
4.6
354
Rate: 4.6 stars, 354 votes
2 colors
£7.99
Was £9.99
KALENJI Men's breathable briefs - Dark blue
4.3
580
Rate: 4.3 stars, 580 votes
£5.99
Gallery item 1 out of 2
VAN RYSEL Cycling Summer Training Base Layer - White/Blue
4.6
2714
Rate: 4.6 stars, 2714 votes
2 colors
£13.99
Gallery item 1 out of 3
WEDZE Men’s Thermal Ski Base Layer Top BL 500 - Dark Blue and Grey
4.7
1395
Rate: 4.7 stars, 1395 votes
3 colors
£14.99
Gallery item 1 out of 11
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Yellow
4.7
4406
Rate: 4.7 stars, 4406 votes
11 colors
£9.99
£17.99
SOLOGNAC BASE LAYER FLEECE TROUSERS 500 BROWN
4.3
26
Rate: 4.3 stars, 26 votes
£24.99
Gallery item 1 out of 2
INESIS Men's Thermal base layer for golf - CW500 navy blue
4.8
294
Rate: 4.8 stars, 294 votes
2 colors
£19.99
KALENJI Men's long seamless boxer - Dark blue
5
2
Rate: 5.0 stars, 2 votes
£15.99
WEDZE Men’s Ski Base Layer Bottoms - BL 500 - Black
4.7
546
Rate: 4.7 stars, 546 votes
£14.99
DOMYOS Men's Cotton Boxers Tri-Pack - Black/Grey/Blue
£14.99
Was £19.99
Gallery item 1 out of 5
KIPSTA Short-Sleeved Keepdry - Mottled Grey
4.7
811
Rate: 4.7 stars, 811 votes
5 colors
£14.99
OLAIAN Base Layer Boxer 500 - Black
4.4
67
Rate: 4.4 stars, 67 votes
£7.99
GUNN AND MOORE GM Cricket Batting Boxer Short Adult
5
1
Rate: 5.0 stars, 1 votes
£11.99
FORCLAZ Men's MT500 mountain trekking Merino wool boxer shorts
4.8
11
Rate: 4.8 stars, 11 votes
£17.99
OFFLOAD Men's Long-Sleeved Rugby Base Layer Top R500 - Black
4.9
26
Rate: 4.9 stars, 26 votes
£14.99
SHIMANO Overshoes Dual Rain
4
1
Rate: 4.0 stars, 1 votes
£29.99
£39.99
DOMYOS Men's Cotton Boxers Twin-Pack - Grey/Red
£14.99
DEXSHELL Waterproof Winter Cycling Socks DS683
4.5
49
Rate: 4.5 stars, 49 votes
£24.99
INOVIK MEN'S 900 THERMAL CROSS-COUNTRY SKIING BASE LAYER BOTTOMS
4.5
76
Rate: 4.5 stars, 76 votes
£24.99
Gallery item 1 out of 2
VAN RYSEL Road Cycling Base Layer Training - Khaki
4.6
2304
Rate: 4.6 stars, 2304 votes
2 colors
£17.99
SOLOGNAC 500 Warm Hunting Wader Liners - Wetlands Camo
4.6
31
Rate: 4.6 stars, 31 votes
£29.99
Gallery item 1 out of 9
KIPSTA Adult Football Undershorts Keepdry 500 - White
4.5
188
Rate: 4.5 stars, 188 votes
9 colors
£14.99
Was £19.99
Gallery item 1 out of 13
TCA Men's Power Base Layer Compression Long Sleeve Top - High Risk Red
5
2
Rate: 5.0 stars, 2 votes
13 colors
Sold and shipped by Thorogood Sports Ltd
£18.99
Gallery item 1 out of 3
INOVIK MEN’S THERMAL CROSS-COUNTRY SKI BASE LAYER 900 – BLACK RED
4.6
134
Rate: 4.6 stars, 134 votes
3 colors
£14.99
£19.99
Gallery item 1 out of 2
WEDZE Men's BL 520 thermal base layer roll neck ski top - light grey
4.7
263
Rate: 4.7 stars, 263 votes
2 colors
£19.99
SOLOGNAC BASE LAYER FLEECE JACKET 500 BROWN
4.6
12
Rate: 4.6 stars, 12 votes
£24.99
Gallery item 1 out of 10
TCA Men's Pro Performance Baselayer Long Sleeve Mock Neck Top
5
1
Rate: 5.0 stars, 1 votes
10 colors
Sold and shipped by Thorogood Sports Ltd
£18.99
ODLO ODLO Men's Blackcomb Base Layer
Sold and shipped by Baselayer Ltd
£70.00
ODLO ODLO Men's Blackcomb Eco Warm Leggings
Sold and shipped by Baselayer Ltd
£65.00
TCA Men's Super Thermal Compression Leggings - Black Stealth
Sold and shipped by Thorogood Sports Ltd
£17.99
£20.99
SURFANIC Bodyfit Pro Zip Neck Black
Sold and shipped by Surfanic
£30.00
£69.99
DLX Mens Base Layer Leggings Thermal Merino Wool Fitchner
Sold and shipped by DLX
£46.99
Gallery item 1 out of 2
SURFANIC CarbonDri Bodyfit Crewneck Black
2 colors
Sold and shipped by Surfanic
£19.99
£30.00
DLX Mens Base Layer Top Long Sleeve Thermal Quick Dry Round Neck Wexler
Sold and shipped by DLX
£66.99
Gallery item 1 out of 7
TCA Men's HyperFusion Breathable Base Layer Compression T-shirt - White
7 colors
Sold and shipped by Thorogood Sports Ltd
£16.99
1 of 5