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Base Layers

Discover the insulating warmth and moisture-wicking comfort of our thermal base layer collection. Best worn to trap heat and regulate body temperature, our light, technical, and breathable base layers can be worn for any outdoor activity. So, if you need a versatile and lightweight way of staying warm when it’s cold, or dry and cool when it’s hot – look no further than a base layer for maximum warmth and breathability.

46 Items

  1. Bubbles Kids' Thermals in Pink Bubbles Kids' Thermals in Pink
    Bubbles Kids' Thermals in Pink
    £19.99 Was £29.99
  2. Bubbles Kids' Thermals in Blue Bubbles Kids' Thermals in Blue
    Bubbles Kids' Thermals in Blue
    £19.99 Was £29.99
  3. Bubbles Kids' Thermals in Black Bubbles Kids' Thermals in Black
    Bubbles Kids' Thermals in Black
    £19.99 Was £29.99
  4. Gylan Men's Thermal Set in Navy
    Gylan Men's Thermal Set in Navy
    £9.99 Was £49.99
  5. Unite360 Kids' Thermals in Black
    Unite360 Kids' Thermals in Black
    £15.99 Was £27.99
  6. Unite360 Unisex Thermal Set in Black
    Unite360 Unisex Thermal Set in Black
    £19.99 Was £37.99
  7. Sashay Women's Sleevless Thermal Set in Yellow
    Sashay Women's Sleevless Thermal Set in Yellow
    £19.99 Was £59.99
  8. Thriller Unisex Thermal Set in Grey
    Thriller Unisex Thermal Set in Grey
    £19.99 Was £49.99
  9. Thriller Unisex Thermal Set in Black Thriller Unisex Thermal Set in Black
    Thriller Unisex Thermal Set in Black
    £19.99 Was £49.99
  10. Bamba Kids' Thermals in Grey
    Bamba Kids' Thermals in Grey
    £47.99 Was £65.99
  11. Bamba Kids' Thermals in Grey
    Bamba Kids' Thermals in Grey
    £47.99 Was £65.99
  12. Mariella Women's DLX Sleeveless T-shirt in Black Mariella Women's DLX Sleeveless T-shirt in Black
    Mariella Women's DLX Sleeveless T-shirt in Black
    £24.99 Was £65.99
  13. Notch Kids' Thermal Trousers in Light Blue
    Notch Kids' Thermal Trousers in Light Blue
    £6.99 Was £14.99
  14. Chara Women's DLX Thermal Trousers in Grey Chara Women's DLX Thermal Trousers in Grey
    Chara Women's DLX Thermal Trousers in Grey
    £40.99 Was £87.99
  15. Libra Women's DLX Long Sleeve Thermal T-Shirt in Grey Libra Women's DLX Long Sleeve Thermal T-Shirt in Grey
    Libra Women's DLX Long Sleeve Thermal T-Shirt in Grey
    £47.99 Was £89.99
  16. Fitchner Men's DLX Merino Wool Thermal Trousers in Grey Fitchner Men's DLX Merino Wool Thermal Trousers in Grey
    Fitchner Men's DLX Merino Wool Thermal Trousers in Grey
    £41.99 Was £93.99
  17. Keenan II Men's Quick Dry Active Top in Black
    Keenan II Men's Quick Dry Active Top in Black
    £19.99 Was £45.99
  18. Wexler Men's DLX Merino Wool Thermal Top in Grey Wexler Men's DLX Merino Wool Thermal Top in Grey
    Wexler Men's DLX Merino Wool Thermal Top in Grey
    £48.99 Was £95.99
  19. Mystery Unisex Super Soft Thermal Set in Navy
    Mystery Unisex Super Soft Thermal Set in Navy
    £19.99 Was £37.99
  20. Enigma Unisex Super Soft Thermal Trousers in Navy
    Enigma Unisex Super Soft Thermal Trousers in Navy
    £10.99 Was £19.99
  21. Unify Unisex Super Soft Long Sleeve Thermal Top in Navy
    Unify Unisex Super Soft Long Sleeve Thermal Top in Navy
    £11.99 Was £21.99
  22. Wise360 Kids' Half Zip Thermal Top in Black
    Wise360 Kids' Half Zip Thermal Top in Black
    £8.99 Was £15.99
  23. Wise360 Unisex Quick Dry Long Sleeve Thermal Top in Black
    Wise360 Unisex Quick Dry Long Sleeve Thermal Top in Black
    £12.99 Was £21.99
  24. Oaf Kids Base Layer Top in Green
    Oaf Kids Base Layer Top in Green
    £8.99 Was £21.99
  25. Oaf Kids Base Layer Top in Purple
    Oaf Kids Base Layer Top in Purple
    £8.99 Was £21.99
  26. Oaf Kids Base Layer Top in Pink
    Oaf Kids Base Layer Top in Pink
    £8.99 Was £21.99
  27. Task Mens Base Layer Pants in Navy
    Task Mens Base Layer Pants in Navy
    £5.49 Was £26.99
  28. Reeta Womens Base Layer Top in Pink
    Reeta Womens Base Layer Top in Pink
    £6.99 Was £26.99
  29. Dasha Women's DLX Long Sleeve Thermal T-shirt in Black Dasha Women's DLX Long Sleeve Thermal T-shirt in Black
    Dasha Women's DLX Long Sleeve Thermal T-shirt in Black
    £22.99 Was £45.99
  30. Brawn Men's DLX Quick Dry Long Sleeve Active T-Shirt in Black Brawn Men's DLX Quick Dry Long Sleeve Active T-Shirt in Black
    Brawn Men's DLX Quick Dry Long Sleeve Active T-Shirt in Black
    £24.99 Was £47.99
  31. Endeavor Women's Long Sleeve Thermal T-Shirt in Pink
    Endeavor Women's Long Sleeve Thermal T-Shirt in Pink
    £24.99 Was £49.99
  32. Keenan Men's Quick Dry Active Top in Blue
    Keenan Men's Quick Dry Active Top in Blue
    £14.99 Was £45.99
  33. Keenan Men's Quick Dry Active Top in Black
    Keenan Men's Quick Dry Active Top in Black
    £14.99 Was £45.99
  34. Flex360 Kids' Thermal Top in Black
    Flex360 Kids' Thermal Top in Black
    £7.99 Was £15.99
  35. Yomp360 Kids' Thermal Bottoms in Black
    Yomp360 Kids' Thermal Bottoms in Black
    £7.99 Was £15.99
  36. FLEX360 Unisex Long Sleeve Thermal Top in Black
    FLEX360 Unisex Long Sleeve Thermal Top in Black
    £12.99 Was £21.99
  37. Yomp360 Unisex Thermal Trousers in Black
    Yomp360 Unisex Thermal Trousers in Black
    £12.99 Was £19.99
  38. Emmie Women's Active T-shirt in Light Pink
    Emmie Women's Active T-shirt in Light Pink
    £8.99 Was £22.99
  39. Emmie Women's Active T-shirt in Blue
    Emmie Women's Active T-shirt in Blue
    £8.99 Was £22.99
  40. Exploit Women's Long Sleeve Thermal T-shirt in Black
    Exploit Women's Long Sleeve Thermal T-shirt in Black
    £15.99 Was £26.99
  41. Exploit Women's Long Sleeve Thermal T-shirt in Black
    Exploit Women's Long Sleeve Thermal T-shirt in Black
    £15.99 Was £26.99
  42. Tactic Men's Thermal Trousers in Black
    Tactic Men's Thermal Trousers in Black
    £17.99 Was £29.99
  43. Explore Men's Thermal Top in Black
    Explore Men's Thermal Top in Black
    £17.99 Was £31.99
  44. Redeem Women's Thermal Trousers in Black
    Redeem Women's Thermal Trousers in Black
    £12.49 Was £24.99
  45. Seeker Men's 1/2 Zip Thermal Top in Black
    Seeker Men's 1/2 Zip Thermal Top in Black
    £37.99 Was £85.99
  46. Seeker Men's 1/2 Zip Thermal Top in Grey
    Seeker Men's 1/2 Zip Thermal Top in Grey
    £37.99 Was £85.99

46 Items

Trespass Base Layers

A range of thermal base layers, merino wool base layers and mid layers for all activities including hiking, skiing and running. Base layers work by acting as a second skin and wicking away moisture, such as sweat, to keep you dry and comfortable when getting active in a variety of climes and conditions. Ensure your base layer fits snugly to maximise its body regulating benefits.

Expert Advice

The Ultimate Base Layers Guide

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  1. Merino Wool Base Layers 8 items
Size
XXS 28
XS 32
S 32
M 32
L 32
XL 32
XXL 32
XXXL 4
S/M 1
M/L 1
L/XL 1
12Y 1
9/10 12
7/8 13
5/6 12
2/3 12
3/4 12
11/12 12
3XS 1
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