Collection: Men's Base Layer / Underwear

Stay warm all winter with our collection of mens baselayers and thermals, including long johns, and versatile short or long sleeve tops. Choose from a wide range of sizes, styles, and materials such as merino wool.
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98 products

  • Harkila Deer Stalker Camo Long Sleeve T-Shirt
    Axis Forest coloured Harkila Deer Stalker Camo Long Sleeve T-Shirt on white background Axis Forest coloured Harkila Deer Stalker Camo Long Sleeve T-Shirt on white background
    Harkila Deer Stalker Camo Long Sleeve T-Shirt
    Regular price
    £89.99
    Regular price
    £89.99
    Sale price
    £89.99
  • Harkila Metso Long Sleeve T-Shirt
    Willow Green coloured Harkila Metso Long Sleeve T-Shirt on white background Willow Green coloured Harkila Metso Long Sleeve T-Shirt on white background
    Harkila Metso Long Sleeve T-Shirt
    Regular price
    £89.99
    Regular price
    £89.99
    Sale price
    £89.99
  • Harkila Logmar Insulated Packable Knee Breeches
    Willow Green Coloured Harkila Logmar Insulated Packable Knee Breeches On A White Background Willow Green Coloured Harkila Logmar Insulated Packable Knee Breeches On A Wooden House Background
    Harkila Logmar Insulated Packable Knee Breeches
    Regular price
    £229.99
    Regular price
    £229.99
    Sale price
    £229.99
  • DeWalt Jonesborough Zip Through Mid Layer Fleece
    DeWalt Jonesborough Zip Through Mid Layer Fleece in Grey DeWalt Jonesborough Zip Through Mid Layer Fleece in Grey
    DeWalt Jonesborough Zip Through Mid Layer Fleece
    Regular price
    £29.95
    Regular price
    £34.99
    Sale price
    £29.95
  • Regatta Thermal Long Johns
    Regatta Thermal Long Johns in Denim Blue
    Regatta Thermal Long Johns
    Regular price
    £8.95
    Regular price
    Sale price
    £8.95
  • Jack Pyke Roll Neck Top
    EVO coloured Jack Pyke Roll Neck Top Evo on white background EVO coloured Jack Pyke Roll Neck Top Evo on white background
    Jack Pyke Roll Neck Top
    Regular price
    £15.95
    Regular price
    £18.95
    Sale price
    £15.95
  • Fort Thermal Long Johns
    Blue coloured Fort Thermal Long Johns on white background Blue coloured Fort Thermal Long Johns on white background
    Fort Thermal Long Johns
    Regular price
    £5.45
    Regular price
    £7.95
    Sale price
    £5.45
  • Deerhunter Heat Long Johns
    Black coloured Deerhunter Heat Long Johns on white background Black coloured Deerhunter Heat Long Johns on white background
    Deerhunter Heat Long Johns
    Regular price
    £93.95
    Regular price
    £109.99
    Sale price
    £93.95
  • Deerhunter Heat Undershirt with Zip Neck
    Black coloured Deerhunter Heat Undershirt with Zip Neck on white background Black coloured Deerhunter Heat Undershirt with Zip Neck on white background
    Deerhunter Heat Undershirt with Zip Neck
    Regular price
    £101.50
    Regular price
    £119.99
    Sale price
    £101.50
  • Deerhunter Norden Insulated Long Johns
    Brown Melange coloured Deerhunter Norden Insulated Long Johns on white background Brown Melange coloured Deerhunter Norden Insulated Long Johns on white background
    Deerhunter Norden Insulated Long Johns
    Regular price
    £34.84
    Regular price
    £39.99
    Sale price
    £34.84
  • Percussion Megadry Long Johns
    Percussion Megadry Long Johns in Khaki Percussion Megadry Long Johns in Black
    Percussion Megadry Long Johns
    Regular price
    £15.95
    Regular price
    £22.95
    Sale price
    £15.95
    Sale
  • Deerhunter Quinn Merino Undershirt
    Black Oak coloured Deerhunter Quinn Merino Undershirt on white background Black Oak coloured Deerhunter Quinn Merino Undershirt on white background
    Deerhunter Quinn Merino Undershirt
    Regular price
    £98.95
    Regular price
    £109.99
    Sale price
    £98.95
  • Harkila Base Warm Zip Neck
    Willow Green Shadow Brown Harkila Base Warm Zip Neck on white background Willow Green Shadow Brown Harkila Base Warm Zip Neck on white background
    Harkila Base Warm Zip Neck
    Regular price
    £119.99
    Regular price
    £119.99
    Sale price
    £119.99
  • Harkila All Season Long Johns
    Shadow Brown coloured Harkila All Season Long Johns on white background Shadow Brown coloured Harkila All Season Long Johns on white background
    Harkila All Season Long Johns
    Regular price
    £99.99
    Regular price
    £99.99
    Sale price
    £99.99
  • Hard Yakka Mens Cotton Trunk Five Pack
    Multi Coloured Hard Yakka Mens Cotton Trunk Five Pack on White Background
Multi Coloured Hard Yakka Mens Cotton Trunk Five Pack on White Background
    Hard Yakka Mens Cotton Trunk Five Pack
    Regular price
    £19.95
    Regular price
    £25.99
    Sale price
    £19.95
  • TuffStuff Basewear Bottoms
    Black Coloured TuffStuff Basewear Bottoms On A White Background Black Coloured TuffStuff Basewear Bottoms On A Fitting Room Background
    TuffStuff Basewear Bottoms
    Regular price
    £7.95
    Regular price
    £9.95
    Sale price
    £7.95
  • Icebreaker Mens Merino 260 Tech Half Zip Thermal Top
    Black Coloured Icebreaker Mens Merino 260 Tech Half Zip Thermal Top on white background Black Coloured Icebreaker Mens Merino 260 Tech Half Zip Thermal Top on white background
    Icebreaker Mens Merino 260 Tech Half Zip Thermal Top
    Regular price
    £99.50
    Regular price
    £125.00
    Sale price
    £99.50
  • Icebreaker Mens Merino 200 Oasis Half Zip Thermal Top
    Black Coloured Icebreaker Mens Merino 200 Oasis Half Zip Thermal Top on white background Black Coloured Icebreaker Mens Merino 200 Oasis Half Zip Thermal Top on white background
    Icebreaker Mens Merino 200 Oasis Half Zip Thermal Top
    Regular price
    £74.95
    Regular price
    £95.00
    Sale price
    £74.95
  • Swazi Micro Fleece Singlet
    Black Coloured Swazi Micro Fleece Singlet On A White Background Black Coloured Swazi Micro Fleece Singlet On A Forest Background
    Swazi Micro Fleece Singlet
    Regular price
    £24.95
    Regular price
    £24.95
    Sale price
    £24.95
  • Harkila Base Active Long Sleeve O-Neck
    Dark Willow Green coloured Harkila Base Active Long Sleeve O-Neck on white background Dark Willow Green coloured Harkila Base Active Long Sleeve O-Neck on forest background
    Harkila Base Active Long Sleeve O-Neck
    Regular price
    £89.99
    Regular price
    £89.99
    Sale price
    £89.99
  • Harkila Heat Long Johns
    Willow Green Black Harkila Heat Long Johns on white background Willow Green Black Harkila Heat Long Johns on white background
    Harkila Heat Long Johns
    Regular price
    £219.99
    Regular price
    £219.99
    Sale price
    £219.99
  • Laksen Clisham Merino Long Johns
    Sand Coloured Laksen Clisham Long Johns On A White Background
    Laksen Clisham Merino Long Johns
    Regular price
    £99.00
    Regular price
    £99.00
    Sale price
    £99.00
  • Harkila All Season Long Johns Base Layer
    Harkila All Season Long Johns Base Layer in Shadow Brown Harkila All Season Long Johns Base Layer in Shadow Brown
    Harkila All Season Long Johns Base Layer
    Regular price
    £129.99
    Regular price
    £129.99
    Sale price
    £129.99
  • Harkila All Season Half Zip Base Layer
    Harkila All Season Half Zip Base Layer in Shadow Brown Harkila All Season Half Zip Base Layer in Shadow Brown
    Harkila All Season Half Zip Base Layer
    Regular price
    £129.99
    Regular price
    £129.99
    Sale price
    £129.99
  • Musto Mens Thermal Base Layer
    Dark Grey Marl coloured Musto Mens Thermal Base Layer Long-Sleeve Top on white background Dark Grey Marl coloured Musto Mens Thermal Base Layer Long-Sleeve Top on white background
    Musto Mens Thermal Base Layer
    Regular price
    £59.95
    Regular price
    £75.00
    Sale price
    £59.95
  • Laksen Clisham Short Sleeve T-Shirt
    Sand Coloured Laksen Clisham Short Sleeve T-Shirt On A White Background
    Laksen Clisham Short Sleeve T-Shirt
    Regular price
    £99.00
    Regular price
    £99.00
    Sale price
    £99.00
  • Laksen Clisham Long Sleeve T-Shirt
    Sand Coloured Laksen Clisham Long Sleeve V-neck T-Shirt On A White Background Sand Coloured Laksen Clisham Long Sleeve V-neck T-Shirt On A White Background
    Laksen Clisham Long Sleeve T-Shirt
    Regular price
    £109.00
    Regular price
    £109.00
    Sale price
    £109.00
  • Helly Hansen Lifa Base Layer Crewneck
    Helly Hansen Lifa Base Layer Crewneck in Black Helly Hansen Lifa Base Layer Crewneck in Black
    Helly Hansen Lifa Base Layer Crewneck
    Regular price
    £35.95
    Sale price
    £35.95
  • Helly Hansen Lifa Base Layer
    Helly Hansen Lifa Base Layer Pant in Black Helly Hansen Lifa Base Layer Pant in Black
    Helly Hansen Lifa Base Layer
    Regular price
    £28.95
    Regular price
    £37.99
    Sale price
    £28.95
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Men's base layers, also known as thermals or thermal underwear, are essential garments for braving the harshest climates during outdoor activities.

These base layers are designed to provide warmth and comfort by trapping body heat close to the skin. Whether you're working out on the farm in the early winter mornings or heading for a hike through the snow, these mens thermals are a must-have item.

Stocking top brands like Fort and Deerhunter, this collection holds a wide range of options, from long-sleeved tops to long johns and merino wool base layers. Each garment is made from high-quality materials with excellent moisture-wicking properties to keep you dry and regulate your body temperature, preventing you from feeling too hot or too cold.

Layering can make all the difference when it comes to effective performance, and these base layers for men are the ideal starting point. Stay warm, stay comfortable, and enjoy the great outdoors to the fullest!

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