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.
290 items
QUECHUA Sock Hike 50 High - Pack of 2 pairs - Grey
QUECHUA Sock Hike 50 High - Pack of 2 pairs - Grey
Rate: 4.5 stars, 1588 votes
£5.99
KIPRUN PACK OF 2 PAIRS OF RUN 500 THICK MID RUNNING SOCKS
KIPRUN PACK OF 2 PAIRS OF RUN 500 THICK MID RUNNING SOCKS
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KIPRUN PACK OF 2 PAIRS OF RUN 500 THICK MID RUNNING SOCKS
2 colors
£5.99
KIPSTA Adult Long-Sleeved Thermal Football Base Layer Top Keepcomfort 100 - Black
KIPSTA Adult Long-Sleeved Base Layer Top Keepcomfort - Black
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KIPSTA Adult Long-Sleeved Thermal Football Base Layer Top Keepcomfort 100 - Black
Rate: 4.6 stars, 990 votes
2 colors
£9.99
QUECHUA Hiking Socks Hike 500 Mid 2-Pack - grey yellow
QUECHUA Hiking Socks Hike 500 Mid x2 Pairs - Grey and Red
QUECHUA Hiking socks - Hike 500 Mid x2 pairs Mint Green
QUECHUA Hiking socks - Hike 500 Mid Black x2 pairs
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QUECHUA Hiking Socks Hike 500 Mid 2-Pack - grey yellow
Rate: 4.6 stars, 2726 votes
4 colors
£12.99
ARTENGO Low Sports Socks RS 160 Tri-Pack - Orange/Beige/White
ARTENGO Low Sports Socks RS 160 Tri-Pack - Sky Blue/White/Pink
ARTENGO Low Sports Socks RS 160 Tri-Pack - Glossy Black
ARTENGO Low Sports Socks Tri-Pack RS 160 - Off-White/Oatmeal Print
ARTENGO Low Tennis Socks RS 160 Tri-Pack - Green/White/Green
ARTENGO Low Sports Socks Tri-Pack RS 160 - White/Off-White/Print
ARTENGO Low Sports Socks RS 160 Tri-Pack - Pink/White/China Blue
ARTENGO RS 160 Low Sports Socks Tri-Pack - Black
ARTENGO RS 160 Low Sports Socks Tri-Pack - Grey
ARTENGO Low Sports Socks RS 160 Tri-Pack - Glossy White
ARTENGO RS 160 Low Sports Socks Tri-Pack - White
ARTENGO Low Sports Socks RS 160 Tri-Pack - Navy
ARTENGO Low Sports Socks RS 160 3-Pack - Light Khaki/Black/Khaki
ARTENGO Low Sports Socks RS 160 Tri-Pack - Colour Block/Pink
ARTENGO Low Sports Socks Tri-Pack RS 160 - Beige Print/Brown/Black
ARTENGO Low Sports Socks Tri-Pack RS 160 - Camo/Taupe/White
ARTENGO Low Sports Socks RS 160 Tri-Pack - Apricot/Pink/Navy
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ARTENGO Low Sports Socks RS 160 Tri-Pack - Orange/Beige/White
Rate: 4.6 stars, 20160 votes
17 colors
£4.99£5.99
QUECHUA Sock Hike 100 High - Pack of 2 Pairs - Linen and Terracotta
QUECHUA Sock Hike 100 High 2-Pack - black
QUECHUA Hike 100 High Socks Limited Edition Pack of 2 Pairs - Khaki and Brown
QUECHUA Hike 100 High Socks - Trendy stripes and blue - Pack of 2 pairs
QUECHUA Sock Hike 100 High - Pack of 2 pairs - Grey and Blue
QUECHUA Sock Hike 100 High - Pack of 2 pairs - Grey and Blue
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QUECHUA Sock Hike 100 High - Pack of 2 Pairs - Linen and Terracotta
Rate: 4.5 stars, 2682 votes
6 colors
£8.99
QUECHUA Hiking Socks Hike 900 High 2-Pack - khaki
QUECHUA Hiking socks - Hike 900 High black - pack of 2 pairs
QUECHUA Hiking socks - Hike 900 High Blue - Pack of 2 pairs
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QUECHUA Hiking Socks Hike 900 High 2-Pack - khaki
Rate: 4.5 stars, 2191 votes
3 colors
£24.99
QUECHUA Hiking Socks Hike 500 High Trendy x2 Pairs - Purple & Kamo
QUECHUA Hiking socks - Hike 500 High Trendy Kamo x2 pairs
QUECHUA Hiking Socks Hike 500 High Trendy Mountain & Kamo x2 Pairs
QUECHUA Hiking socks - Hike 500 High Beige x2 pairs
QUECHUA Hiking socks - Hike 500 High Blue x2 pairs
QUECHUA Hiking socks - Hike 500 High Black x2 pairs
QUECHUA Hiking socks - Hike 500 High x2 pairs Turquoise
QUECHUA Hiking socks - Hike 500 High Bordeaux x2pairs
QUECHUA Hiking socks - Hike 500 High Coral x2 pairs
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QUECHUA Hiking Socks Hike 500 High Trendy x2 Pairs - Purple & Kamo
Rate: 4.5 stars, 2969 votes
9 colors
£14.99
QUECHUA Hike 100 Mid Socks – Brown and Grey – Pack of 2 pairs
QUECHUA Socks Hike 100 Mid 2-Pack - black
QUECHUA Hike 100 Mid Socks - Pink and Grey- Pack of 2
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QUECHUA Hike 100 Mid Socks – Brown and Grey – Pack of 2 pairs
Rate: 4.6 stars, 1451 votes
3 colors
£6.99
ARTENGO High Tennis Socks RS 500 Tri-Pack - White
ARTENGO High Tennis Socks RS 500 Tri-Pack - Grey
ARTENGO High Tennis Socks RS 500 Tri-Pack - Navy
ARTENGO High Tennis Socks RS 500 Tri-Pack - Black
ARTENGO High Tennis Socks RS 500 Tri-Pack - Retro White
ARTENGO High Tennis Socks RS 500 Tri-Pack - Shiny White
ARTENGO RS800 Adult High Sports Socks 3-pack - Grey
ARTENGO RS 500 Adult High Sports Socks Tri-Pack - Grey
ARTENGO High Tennis Socks RS 500 Tri-Pack - Grege
ARTENGO High Tennis Socks RS 500 Tri-Pack - Black/Stripes
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ARTENGO High Tennis Socks RS 500 Tri-Pack - White
Rate: 4.5 stars, 29202 votes
10 colors
£7.99
QUECHUA Hiking socks - Hike 520 Double High Grey x2 pairs
QUECHUA Hiking socks - Hike 520 Double High Navy x 2 pairs
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QUECHUA Hiking socks - Hike 520 Double High Grey x2 pairs
Rate: 4.3 stars, 2238 votes
2 colors
£17.99
KIPRUN RUN900 THIN INVISIBLE RUNNING SOCKS
KIPRUN RUN900 THIN INVISIBLE RUNNING SOCKS
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KIPRUN RUN900 THIN INVISIBLE RUNNING SOCKS
Rate: 4.5 stars, 1424 votes
2 colors
£6.99
DOMYOS Women's Non-Slip Fitness Socks 500 - Black
DOMYOS Women's Non-Slip Fitness Socks 500 - Grey
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DOMYOS Women's Non-Slip Fitness Socks 500 - Black
Rate: 4.5 stars, 2110 votes
2 colors
£5.99
Was £6.99
KIPSTA Football Socks Viralto Solo - Pink/Red Stripes
KIPSTA Football Socks Viralto Club - Navy Blue
KIPSTA Football Socks Viralto Club - Orange
KIPSTA Football Socks Viralto Club - Green
KIPSTA Football Socks Viralto Club - Purple
KIPSTA Football Socks Viralto Club - Red
KIPSTA Football Socks Viralto Club - White
KIPSTA Football Socks Viralto Club - Black
KIPSTA Football Socks Viralto Club - Blue
KIPSTA Football Socks Viralto Club - Yellow
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KIPSTA Football Socks Viralto Solo - Pink/Red Stripes
Rate: 4.5 stars, 3699 votes
10 colors
£5.99
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Yellow
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Green
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Khaki
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - White
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Red
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Mottled Grey
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Navy Blue
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Indigo Blue
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Black
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Orange
KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Purple
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KIPSTA Adult Long-Sleeved Thermal Base Layer Top Keepdry 500 - Yellow
Rate: 4.7 stars, 4396 votes
11 colors
£9.99£17.99
KIPRUN RUN900 MID FINE RUNNING SOCKS
KIPRUN ECO-DESIGN RUN900 MID FINE RUNNING SOCKS - WHITE
KIPRUN RUN900 MID FINE RUNNING SOCKS - YELLOW
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KIPRUN RUN900 MID FINE RUNNING SOCKS
Rate: 4.6 stars, 3169 votes
3 colors
£7.99
QUECHUA Warm Hiking Socks - SH100 MID - 2 Pairs
QUECHUA Warm Hiking Socks - SH100 MID - 2 Pairs
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QUECHUA Warm Hiking Socks - SH100 MID - 2 Pairs
Rate: 4.6 stars, 2746 votes
2 colors
£8.99
ARTENGO High Sports Socks RS 160 Tri-Pack - White
ARTENGO High Sports Socks RS 160 Tri-Pack - Black
ARTENGO High Sports Socks RS 160 Tri-Pack - Grey
ARTENGO High Sports Socks RS 160 Tri-Pack - Navy
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ARTENGO High Sports Socks RS 160 Tri-Pack - White
Rate: 4.5 stars, 14543 votes
4 colors
£5.99
KIPSTA Short-Sleeved Keepdry - Mottled Grey
KIPSTA Adult Short-Sleeved Football Base Layer Keepdry - Red
KIPSTA Adult Short-Sleeved Football Base Layer Keepdry - Navy Blue
KIPSTA Adult Short-Sleeved Thermal Base Layer Top Keepdry 500 - White
KIPSTA Adult Short-Sleeved Thermal Base Layer Top Keepdry 500 - Black
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KIPSTA Short-Sleeved Keepdry - Mottled Grey
Rate: 4.7 stars, 797 votes
5 colors
£14.99
ARTENGO Mid Sports Socks Tri-Pack RS 560 - Black/Grey
ARTENGO RS 560 Mid Sport Socks Tri-Pack - White/Grey
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ARTENGO Mid Sports Socks Tri-Pack RS 560 - Black/Grey
Rate: 4.6 stars, 2230 votes
2 colors
£9.99
QUECHUA Warm Hiking Socks SH500 Mid 2 Pairs
QUECHUA Warm Hiking Socks SH500 Mid 2 Pairs
QUECHUA Warm Hiking Socks SH500 Mid 2 Pairs
QUECHUA Warm Hiking Socks SH500 Mid 2 Pairs
QUECHUA Warm Hiking Socks - SH500 ULTRA-WARM MID - 2 Pairs
QUECHUA Warm Hiking Socks SH500 Mid 2 Pairs
QUECHUA Warm Hiking Socks - SH500 ULTRA-WARM MID - 2 Pairs
QUECHUA Warm Hiking Socks - SH500 ULTRA-WARM MID - 2 Pairs
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QUECHUA Warm Hiking Socks SH500 Mid 2 Pairs
Rate: 4.6 stars, 4133 votes
8 colors
£9.99£12.99
QUECHUA Hiking Socks Hike 900 Mid 2-Pack - black
QUECHUA Hiking Socks Hike 900 Mid 2-Pack - grey
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QUECHUA Hiking Socks Hike 900 Mid 2-Pack - black
Rate: 4.6 stars, 624 votes
2 colors
£19.99
DOMYOS Men's Cotton Boxers Tri-Pack - Black/Grey/Blue
DOMYOS Men's Cotton Boxers Tri-Pack - Black/Grey/Blue
£19.99
ARTENGO High Sports Socks Tri-Pack RS 560 - Black/Grey
ARTENGO High Sport Socks RS 560 Tri-Pack - White/Grey
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ARTENGO High Sports Socks Tri-Pack RS 560 - Black/Grey
Rate: 4.5 stars, 2597 votes
2 colors
£9.99
ARTENGO Mid Tennis Socks RS 500 Tri-Pack - Glossy White
ARTENGO Mid-High Tennis Socks RS 500 Tri-Pack - Navy
ARTENGO RS 500 Mid Sports Socks Tri-Pack - Black
ARTENGO RS 500 Mid Sports Socks Tri-Pack - White
ARTENGO RS 500 Mid Sports Socks Tri-Pack - Grey
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ARTENGO Mid Tennis Socks RS 500 Tri-Pack - Glossy White
Rate: 4.5 stars, 11816 votes
5 colors
£7.99
KIPSTA Adult Football Socks Essential - White
KIPSTA Adult Football Socks Essential - Blue
KIPSTA Adult Football Socks Essential Club - Red
KIPSTA Adult Football Socks Essential Club - Black
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KIPSTA Adult Football Socks Essential - White
Rate: 4.3 stars, 2547 votes
4 colors
£2.99
Was £3.99
QUECHUA Sock Hike 100 Low 2-Pack - grey
QUECHUA Socks Hike 100 Low 2-Pack - black
QUECHUA Hike 100 Low Socks - Light Blue- Pack of 2 pairs
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QUECHUA Sock Hike 100 Low 2-Pack - grey
Rate: 4.6 stars, 1288 votes
3 colors
£5.99
KIPRUN 900 COMPRESSION RUNNING SOCKS
KIPRUN 900 COMPRESSION RUNNING SOCKS
Rate: 4.4 stars, 131 votes
£24.99
OFFLOAD Adult Knee-Length Rugby Socks R500 - Red
OFFLOAD Adult Knee-Length Rugby Socks R500 - Black
OFFLOAD Knee-Length Rugby Socks R500 - Blue
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OFFLOAD Adult Knee-Length Rugby Socks R500 - Red
Rate: 4.6 stars, 232 votes
3 colors
£5.99
QUECHUA Warm hiking socks - SH100 MID JACQUARD - 2 pairs
QUECHUA Warm hiking socks - SH100 MID JACQUARD - 2 pairs
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QUECHUA Warm hiking socks - SH100 MID JACQUARD - 2 pairs
Rate: 4.2 stars, 73 votes
2 colors
£9.99£12.99
KIPRUN RUNNING 500 COMPRESSION SOCKS
KIPRUN RUNNING 500 COMPRESSION SOCKS
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KIPRUN RUNNING 500 COMPRESSION SOCKS
Rate: 4.2 stars, 315 votes
2 colors
£14.99
SIMOND Mountaineering Socks - Alpinism Black
SIMOND Mountaineering Socks - Alpinism Black
Rate: 4.5 stars, 289 votes
£14.99
FOUGANZA 700 Adult Horse Riding Socks - Navy
FOUGANZA 700 Adult Horse Riding Socks - Black
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FOUGANZA 700 Adult Horse Riding Socks - Navy
Rate: 4.6 stars, 696 votes
2 colors
£8.99
FOUGANZA Adult Horse Riding Socks 500 Twin-Pack - Lavender Purple/Navy Graphic Designs
FOUGANZA Adult Horse Riding Socks 500 - Blue/Black/Green GraphPack of 2
FOUGANZA Adult Horse Riding Socks 500 - Burgundy/Black GraphPack of 2
FOUGANZA Adult Horse Riding Socks 500 - Blue/Black/Larch Green GraphPack of 2
FOUGANZA Adult Horse Riding Socks 500 - Blue/Black/Brown GraphPack of 2
FOUGANZA Adult Horse Riding Socks 500 - Grey/Black GraphPack of 2
FOUGANZA Adult Horse Riding Socks 500 - Black/Grey/Pink PatternsPack of 2
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FOUGANZA Adult Horse Riding Socks 500 Twin-Pack - Lavender Purple/Navy Graphic Designs
7 colors
£8.49
KIPRUN RUN900 THICK STRAP RUNNING SOCKS - BLACK
KIPRUN RUNNING THICK STRAP SOCKS - BLACK
KIPRUN Running Thick Socks Run 900 Strap - blue
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KIPRUN RUN900 THICK STRAP RUNNING SOCKS - BLACK
Rate: 4.4 stars, 5137 votes
3 colors
£9.99
ARTENGO Mid Sports Socks Tri-Pack RS 160 - Khaki/Khaki/Black
ARTENGO RS 160 Mid Sport Socks Tri-Pack - Dark Grey
ARTENGO Mid Sports Socks Tri-Pack RS 160 - Black
ARTENGO RS 160 Adult Mid-High Sports Socks Tri-Pack - White
ARTENGO Mid Sports Socks RS 160 Tri-Pack - Purple and White Patterns
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ARTENGO Mid Sports Socks Tri-Pack RS 160 - Khaki/Khaki/Black
Rate: 4.6 stars, 10730 votes
5 colors
£5.99
VAN RYSEL Long-Sleeved Cycling Base Layer Racer - Carbon Grey
VAN RYSEL Long-Sleeved Cycling Base Layer Racer - Cosmos Blue
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VAN RYSEL Long-Sleeved Cycling Base Layer Racer - Carbon Grey
Rate: 4.6 stars, 382 votes
2 colors
£29.99
OFFLOAD Men's Long-Sleeved Rugby Base Layer Top R500 - Black
OFFLOAD Men's Long-Sleeved Rugby Base Layer Top R500 - Black
Rate: 4.9 stars, 26 votes
£14.99
QUECHUA Warm Hiking Socks - SH100 U-WARM MID - 2 Pairs
QUECHUA Warm Hiking Socks SH100 U Warm 2 Pairs
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QUECHUA Warm Hiking Socks - SH100 U-WARM MID - 2 Pairs
Rate: 4.5 stars, 170 votes
2 colors
£24.99
NEWFEEL Fitness/Nordic Walking Socks WS 100 Invisible 3-Pack - white
NEWFEEL Fitness/Nordic Walking Socks WS 100 Invisible 3-Pack - white
Rate: 4.2 stars, 832 votes
£6.49
4.4/5 based on 198418 reviews collected online and in stores

Underwear you can wear to run, jump and play

Welcome to Decathlon's men's innerwear and thermals page. No matter if you do sport every day or occasionally we have the right clothes and equipment to meet your needs. Our men's innerwear and thermals are designed for different sports and intensity. Discover the range for cycling, running, skiing, football and other sports now.