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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  • Green Coloured Hoggs of Fife 100% Merino Wool Short Sleeve Crew Neck Base Layer on white background Green Coloured Hoggs of Fife 100% Merino Wool Short Sleeve Crew Neck Base Layer on white background
    Hoggs of Fife 100% Merino Wool Short Sleeve Crew Neck Base Layer
    £35.95
    £39.95
    £35.95

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  • Green Coloured Hoggs of Fife 100% Merino Wool Long Sleeve Crew Neck Base Layer on white background Green Coloured Hoggs of Fife 100% Merino Wool Long Sleeve Crew Neck Base Layer on lake background
    Hoggs of Fife 100% Merino Wool Long Sleeve Crew Neck Base Layer
    £40.95
    £49.95
    £40.95

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  • Green Coloured Hoggs of Fife 100% Merino Wool Long Pants on white background Green Coloured Hoggs of Fife 100% Merino Wool Long Pants on white background
    Hoggs of Fife 100% Merino Wool Long Pants
    £40.45
    £49.95
    £40.45

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  • Grey Fog coloured Helly Hansen Mens Tech Crew Long Sleeve T-Shirt 2.0 on white background Grey Fog coloured Helly Hansen Mens Tech Crew Long Sleeve T-Shirt 2.0 on white background
    +1
    Helly Hansen Mens Tech Crew Long Sleeve T-Shirt 2.0
    £24.95
    £30.00
    £24.95

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  • EVO coloured Quick Wick Armour Top on white background EVO coloured Quick Wick Armour Top on forest background
    Jack Pyke Quick Wick Armour Top
    £14.95
    £18.95
    £14.95

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  • White Coloured Helly Hansen Mens Lifa Stripe Long Sleeve Crew Base Layer on white background White Coloured Helly Hansen Mens Lifa Stripe Long Sleeve Crew Base Layer on white background
    Helly Hansen Mens Lifa Stripe Long Sleeve Crew Base Layer
    £29.95
    £40.00
    £29.95

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    Ski Free
  • InVis Green Coloured Seeland Active Camo Long Sleeve T-Shirt on white background InVis Green Coloured Seeland Active Camo Long Sleeve T-Shirt on forest background
    Seeland Active Camo Long Sleeve T-Shirt
    £53.95
    £59.99
    £53.95

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  • Black Coloured Icebreaker Mens Merino 260 Tech Crewe Thermal Top on white background Black Coloured Icebreaker Mens Merino 260 Tech Crewe Thermal Top on white background
    +2
    Icebreaker Mens Merino 260 Tech Crew Thermal Top
    £79.95
    £105.00
    £79.95
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    Sale
  • Gritstone Heather Coloured Icebreaker Mens Merino 200 Oasis Crew Short Sleeve Thermal Top on white background Gritstone Heather Coloured Icebreaker Mens Merino 200 Oasis Crew Short Sleeve Thermal Top on white background
    Icebreaker Mens Merino 200 Oasis Crew Short Sleeve Thermal Top
    £59.50
    £75.00
    £59.50
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  • Olive Black Check Coloured Swanndri Mens Underwear on white background Olive Black Check Coloured Swanndri Mens Underwear on white background
    Swanndri Mens Underwear
    £17.50
    £18.95
    £17.50

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  • Shadow Brown Coloured Harkila Base Mesh Long Johns on white background Shadow Brown Coloured Harkila Base Mesh Long Johns on white background
    Harkila Base Mesh Long Johns
    £89.99
    £109.99
    £89.99
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    Sale
  • Navy Coloured Helly Hansen Mens Lifa Active Crew Base Layer on white background Navy Coloured Helly Hansen Mens Lifa Active Crew Base Layer on white background
    Helly Hansen Mens Lifa Active Crew Base Layer
    £37.95
    £55.00
    £37.95
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    Ski Free
  • Forest Green coloured Deerhunter Chamois Short Sleeve T-Shirt on white background Forest Green coloured Deerhunter Chamois Short Sleeve T-Shirt on forest background
    Deerhunter Chamois Short Sleeve T-Shirt
    £14.95
    £29.99
    £14.95
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    Sale
  • Loden Coloured Icebreaker Mens Merino 200 Oasis Thermal Leggings on white background Loden Coloured Icebreaker Mens Merino 200 Oasis Thermal Leggings on white background
    Icebreaker Mens Merino 200 Oasis Thermal Leggings
    £67.90
    £85.00
    £67.90
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  • Green coloured Jack Pyke Mens Cotton T-Shirt on white background Green coloured Jack Pyke Mens Cotton T-Shirt on white background
    Jack Pyke Mens Cotton T-Shirt
    £15.95
    £17.95
    £15.95
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  • Black Coloured Icebreaker Mens Merino 200 Oasis 3/4 Thermal Leggings on white background Black Coloured Icebreaker Mens Merino 200 Oasis 3/4 Thermal Leggings on white background
    Icebreaker Mens Merino 200 Oasis 3/4 Thermal Leggings
    £61.46
    £75.00
    £61.46
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  • Navy coloured Regatta Professional Mens 65/35 Long Sleeves Polo Top on white background Navy coloured Regatta Professional Mens 65/35 Long Sleeves Polo Top on outdoor background
    Regatta Professional Mens 65/35 Polo Shirt
    £9.95
    £20.00
    £9.95
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  • Forest Green Coloued Deerhunter Chamois Long Sleeve T-Shirt on white background Forest Green Coloued Deerhunter Chamois Long Sleeve T-Shirt on forest background
    Deerhunter Chamois Long Sleeve T-Shirt
    £24.95
    £39.99
    £24.95
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    Sale
  • Olive Coloured Laksen Mens Lomond V-neck Tee on white background
    Laksen Mens Lomond V-neck Tee
    £43.00
    £75.00
    £43.00
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    Sale
  • Navy Coloured Helly Hansen Mens Lifa Active Base Layer Pants on white background Navy Coloured Helly Hansen Mens Lifa Active Base Layer Pants on white background
    Helly Hansen Mens Lifa Active Base Layer Pants
    £34.95
    £50.00
    £34.95
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    Ski Free
  • Black coloured Helly Hansen Mens HH LIFA T-Shirt on white background Black coloured Helly Hansen Mens HH LIFA T-Shirt on white background
    Helly Hansen Mens Lifa T-Shirt
    £24.95
    £35.00
    £24.95
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    Sale
  • 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
    £19.95
    £25.99
    £19.95
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  • Khaki coloured Percussion Megadry Long Johns on white background Black coloured Percussion Megadry Long Johns on white background
    Percussion Megadry Long Johns
    £15.95
    £20.00
    £15.95

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    Sale
  • 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
    £15.95
    £18.95
    £15.95

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  • Atlas Red coloured Craghoppers Mens Nosilife Abel Long Sleeved T-Shirt on white background Atlas Red coloured Craghoppers Mens Nosilife Abel Long Sleeved T-Shirt on white background
    Craghoppers Mens Nosilife Abel Long Sleeved T-Shirt
    £25.95
    £45.00
    £25.95

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    Sale
  • Black Coloured Icebreaker Merino 200 Oasis Balaclava on white background Black Coloured Icebreaker Merino 200 Oasis Balaclava on white background
    Icebreaker Merino 200 Oasis Balaclava
    £23.95
    £27.00
    £23.95
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  • Dark Iron coloured Craghoppers Mens NosiLife Nour Long Sleeved T-Shirt on white background Dark Iron coloured Craghoppers Mens NosiLife Nour Long Sleeved T-Shirt on mountain background
    Craghoppers Mens NosiLife Nour Long Sleeved T-Shirt
    £15.95
    £40.00
    £15.95
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    Sale
  • Blue coloured Fort Thermal Long Johns on white background Blue coloured Fort Thermal Long Johns on white background
    Fort Thermal Long Johns
    £4.95
    £7.95
    £4.95

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  • Blue coloured Regatta Mens Thermal Long Sleeve Vest on white background Blue coloured Regatta Mens Thermal Long Sleeve Vest on white background
    Regatta Professional Mens Thermal Long Sleeve Vest
    £7.95
    £25.00
    £7.95
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  • Denim Coloured Fort Thermal Long Sleeve Vest On A White Background White Coloured Fort Thermal Long Sleeve Vest On A White Background
    Fort Thermal Long Sleeve Vest
    £5.35
    £7.95
    £5.35

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  • Navy coloured Hard Yakka Mens Heritage Icon Singlet on white background Navy coloured Hard Yakka Mens Heritage Icon Singlet on outdoor background
    Hard Yakka Mens Heritage Icon Singlet
    £15.95
    £17.99
    £15.95
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  • Brown coloured Northern Hunting Mens Vidar Baselayer Pants on white background Brown coloured Northern Hunting Mens Vidar Baselayer Pants on white background
    Northern Hunting Mens Vidar Baselayer Pants
    £45.00
    £45.00
    £45.00
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  • Dark Green coloured Northern Hunting Norr Vik Long Sleeve Baselayer Top on white background Dark Green coloured Northern Hunting Norr Vik Long Sleeve Baselayer Top on forest background
    Northern Hunting Norr Vik Long Sleeve Baselayer Top
    £59.00
    £59.00
    £59.00
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  • Dark Green coloured Northern Hunting Norr Fal Baselayer Pants on white background Dark Green coloured Northern Hunting Norr Fal Baselayer Pants on forest background
    Northern Hunting Norr Fal Baselayer Pants
    £59.00
    £59.00
    £59.00
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  • Dark Olive coloured Jack Pyke Mens Half Zip Sweatshirt on white background Dark Olive coloured Jack Pyke Mens Half Zip Sweatshirt on white background
    Jack Pyke Mens Half Zip Sweatshirt
    £33.50
    £37.50
    £33.50
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  • Pine Green Coloured Seeland Mens Apex One Hundred Long Johns on white background Pine Green Coloured Seeland Mens Apex One Hundred Long Johns on outdoor background
    Seeland Mens Apex One Hundred Long Johns
    £62.95
    £69.99
    £62.95
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  • Pine Green Melange Coloured Seeland Peak Half Zip on white background Pine Green Melange Coloured Seeland Peak Half Zip on outdoor background
    Seeland Peak Half Zip Top
    £44.95
    £49.99
    £44.95
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  • Shadow Brown Coloured Harkila Aspire Base Layer Set on white background Shadow Brown Coloured Harkila Aspire Base Layer Set on white background
    Harkila Aspire Base Layer Set
    £149.99
    £149.99
    £149.99
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  • Black Coloured Elka Mens Thermal Base Layer Under Trousers on white background
    Elka Mens Thermal Base Layer Under Trousers
    From £15.95
    £44.90
    From £15.95
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  • Black coloured Hj Hall Cotton Rich Thermal Long Johns on white background Black coloured Hj Hall Cotton Rich Thermal Long Johns on white background
    HJ Hall Cotton Rich Thermal Long Johns
    £18.95
    £30.00
    £18.95
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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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