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.
56 items
ADIDAS High Sports Socks Tri-Pack - Black
ADIDAS High Sports Socks Tri-Pack - Black
Rate: 4.6 stars, 328 votes
£9.99
ADIDAS High Sports Socks Tri-Pack - White
ADIDAS High Sports Socks Tri-Pack - White
Rate: 4.6 stars, 459 votes
£9.99
ADIDAS High Sports Socks 3-Pack Stripes - Black/White/Grey
ADIDAS High Sports Socks 3-Pack Stripes - Black/White/Grey
£12.99
ADIDAS adidas Adults Light No-Show Socks 3-Pairs
ADIDAS adidas Adults Light No-Show Socks 3-Pairs
Gallery item 1 out of 2
ADIDAS adidas Adults Light No-Show Socks 3-Pairs
2 colors
Sold and shipped by Rugby Heaven
£12.00
ADIDAS Golf Ankle Socks 3 Pairs
ADIDAS Golf Ankle Socks 3 Pairs
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£12.00
ADIDAS FC Bayern 23/24 Home Socks
ADIDAS FC Bayern 23/24 Home Socks
Gallery item 1 out of 2
ADIDAS FC Bayern 23/24 Home Socks
2 colors
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Crew Golf Socks 3 Pairs
ADIDAS Crew Golf Socks 3 Pairs
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£15.00
ADIDAS Spain 24 Home Socks
ADIDAS Spain 24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Manchester United 23/24 Home Socks
ADIDAS Manchester United 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Ajax Amsterdam 23/24 Away Socks
ADIDAS Ajax Amsterdam 23/24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Golf Ankle Socks 3 Pairs
ADIDAS Golf Ankle Socks 3 Pairs
Gallery item 1 out of 2
ADIDAS Golf Ankle Socks 3 Pairs
2 colors
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£12.00
ADIDAS Crew Golf Socks 3 Pairs
ADIDAS Crew Golf Socks 3 Pairs
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£15.00
ADIDAS Spain 24 Away Socks
ADIDAS Spain 24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Juventus 23/24 Away Socks
ADIDAS Juventus 23/24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Golf Ankle Socks 3 Pairs
ADIDAS Golf Ankle Socks 3 Pairs
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£12.00
ADIDAS Italy 24 Home Socks
ADIDAS Italy 24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Italy 24 Away Socks
ADIDAS Italy 24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Germany 24 Away Socks
ADIDAS Germany 24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Germany 24 Home Socks
ADIDAS Germany 24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Juventus 23/24 Home Socks
ADIDAS Juventus 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Adidas Yoga Training Socks - M/L
ADIDAS Adidas Yoga Training Socks - M/L
Rate: 4.0 stars, 1 votes
Sold and shipped by Workout For Less Ltd
£8.99
ADIDAS Manchester United 23/24 Away Socks
ADIDAS Manchester United 23/24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Arsenal 23/24 Home Socks
ADIDAS Arsenal 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Arsenal 23/24 Away Socks
ADIDAS Arsenal 23/24 Away Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Manchester United 23/24 Home Socks
ADIDAS Manchester United 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS adidas Football GRIP Knitted Crew Light Performance Socks
ADIDAS adidas Football GRIP Knitted Crew Light Performance Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£23.00
ADIDAS Ajax Amsterdam 23/24 Socks
ADIDAS Ajax Amsterdam 23/24 Socks
Rate: 5.0 stars, 1 votes
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Leicester City FC 23/24 Home Socks
ADIDAS Leicester City FC 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Hamburger SV 23/24 Home Socks
ADIDAS Hamburger SV 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS adidas Football GRIP Knitted Crew Cushioned Performance Socks
ADIDAS adidas Football GRIP Knitted Crew Cushioned Performance Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£23.00
ADIDAS Ajax Amsterdam 23/24 Home Socks
ADIDAS Ajax Amsterdam 23/24 Home Socks
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Performance Cushioned Crew Grip Socks 3-Pairs Pack
ADIDAS Performance Cushioned Crew Grip Socks 3-Pairs Pack
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£23.00
ADIDAS adidas Tour No-Show Socks - black
ADIDAS adidas Tour No-Show Socks - black
Sold and shipped by Gamola Golf
£11.99
ADIDAS adidas Tour No-Show Socks - white
ADIDAS adidas Tour No-Show Socks - white
Sold and shipped by Gamola Golf
£11.99
ADIDAS Cushioned Sportswear Crew Socks 6 Pairs
ADIDAS Cushioned Sportswear Crew Socks 6 Pairs
ADIDAS Cushioned Sportswear Crew Socks 6 Pairs
ADIDAS Cushioned Sportswear Crew Socks 6 Pairs
Gallery item 1 out of 4
ADIDAS Cushioned Sportswear Crew Socks 6 Pairs
Rate: 4.4 stars, 8 votes
4 colors
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£20.00
ADIDAS Mid Sports Socks Tri-Pack - Black/White/Grey
ADIDAS Mid Sports Socks Tri-Pack - Black/White/Grey
Rate: 4.6 stars, 137 votes
£9.99
ADIDAS Adult Football Socks Milano - Navy Blue
ADIDAS Adult Football Socks Milano - Navy Blue
Rate: 4.6 stars, 7 votes
£12.99
ADIDAS Adult Football Socks - Black
ADIDAS Adult Football Socks - Black
£12.99
ADIDAS adidas Adults 3-Stripes Cushioned Crew Socks 3 Pairs
ADIDAS adidas Adults 3-Stripes Cushioned Crew Socks 3 Pairs
Rate: 4.0 stars, 1 votes
Sold and shipped by Rugby Heaven
£9.98
ADIDAS Cushioned Sportswear Ankle Socks 6 Pairs
ADIDAS Cushioned Sportswear Ankle Socks 6 Pairs
ADIDAS Cushioned Sportswear Ankle Socks 6 Pairs
Gallery item 1 out of 3
ADIDAS Cushioned Sportswear Ankle Socks 6 Pairs
Rate: 5.0 stars, 2 votes
3 colors
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£18.00
4.6/5 based on 1046 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.