Hiking & Walking 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 layer sets can be worn for any outdoor activity. So, if you need lightweight walking base layers to keep you comfortable on your next trek, or simply an extra layer of warmth for the winter months, look no further than the Trespass range for maximum warmth and breathability. Shop Women's Base Layers | Shop Men's Base Layers

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30 Items

Set Descending Direction
  1. CLEARANCE
    Mens Long Sleeve Active Top in Black Timo
    £16.99 Was £41.99
    2 colours
  2. CLEARANCE
    Women's Base Layer Top Ivana in ROSE BLUSH
    £12.99 Was £31.99
  3. 2 colours
  4. CLEARANCE
    Mens Base Layer Top Arno in DARK GREY
    £19.99 Was £48.99
  5. CLEARANCE
    DLX Women's Thermal Trousers Chara in Grey
    £33.99 Was £84.99
  6. CLEARANCE
    Bamba Kids Thermals in Grey
    £31.99 Was £80.99
    2 colours
  7. CLEARANCE
    Unisex Base Layer Pants Joss in Black
    £33.99 Was £83.99
  8. 2 colours
  9. CLEARANCE
    Womens Footless Tights Toriel in Black
    £9.99 Was £23.99
  10. 5 colours
  11. CLEARANCE
    Bamba Kids Thermals in Grey
    £31.99 Was £80.99
    2 colours
  12. CLEARANCE
    Flex360 Kids' Thermal Top in Black
    £6.99 Was £18.99
  13. CLEARANCE
    Yomp360 Kids' Thermal Bottoms in Black
    £6.99 Was £16.99

30 Items

Set Descending Direction

How To Choose Walking Base Layers For Maximum Comfort

There's a reason why hiking base layers are often referred to as a "second skin". They work by absorbing and evaporating your sweat in order to help you stay fresh and comfortable. Our base layer sets are also highly versatile, suited to a variety of outdoor pursuits from hiking to biking. Hit the trails in maximum comfort with one of our walking base layers.

Trespass Base Layers

A base layer is an essential for any efficient layering system, and our collection of base layer sets is ideal for a range of outdoor activities. You'll find everything from hiking base layers and mid layers to merino wool base layers, expertly crafted to wick away moisture in order to keep you dry and comfortable. Ensure your base layer fits snugly to maximise its body regulating benefits.

Hiking and walking base layers are available in different weights and styles to suit conditions and activity intensity.

  • Lightweight base layers: Best for mild weather or high output walking and hiking. They focus on breathability and moisture control to help prevent overheating during steady movement.
  • Midweight base layers: A versatile option for cooler conditions. These balance warmth and airflow, making them suitable for most walking and hiking routes throughout the year.
  • Heavyweight base layers: Designed for cold weather walking or slower paced hikes. These layers trap heat more effectively and are ideal when temperatures drop or when stopping for longer breaks.

Choosing the right weight helps base layers remain comfortable without restricting movement.

Materials and How They Work

The materials used in hiking and walking base layers directly affect warmth, breathability, and moisture management.

  • Polyester: Lightweight, durable, and quick drying. Polyester base layers wick moisture away from the skin and are well suited to regular outdoor use.
  • Polyamide: Adds strength and abrasion resistance while remaining lightweight. Often blended into base layers for durability.
  • Elastane: Provides stretch for comfort and freedom of movement, helping base layers maintain a close but flexible fit.
  • Merino wool: Naturally breathable and naturally odour resistant. Merino wool helps regulate body temperature and remains comfortable across a wide range of conditions.
  • Blended fabrics: Combining natural fibres with synthetics improves softness, stretch, and moisture control while maintaining durability.

These materials help hiking base layers manage moisture, warmth, and comfort during outdoor adventures.

Well designed features improve comfort and practicality when layering.

  • Flat seams help reduce irritation during longer walks.
  • Stretch fabrics support dynamic movement on uneven terrain.
  • Close fitting cuts improve heat retention and moisture transfer.
  • Long sleeved designs provide full coverage in cooler conditions.
  • Lightweight construction makes layering easier under mid layers.

These features help base layers perform consistently as part of a layering system.

Different activities place different demands on base layers.

  • Casual walking: Lightweight or midweight base layers provide comfort without overheating.
  • Day hiking: Midweight hiking base layers balance warmth and breathability for mixed terrain and changing conditions.
  • Cold weather walking: Heavier walking base layers help trap heat and improve thermal efficiency.
  • Trail running or fast hiking: Lightweight base layers with strong moisture wicking help manage sweat during higher exertion.
  • Multi day trips: Quick drying fabrics help base layers remain comfortable across repeated use.

Matching base layers to your activity improves comfort and temperature control.

What is a good base layer for hiking?

A good base layer for hiking should wick moisture, fit close to the body, and help regulate body temperature. Lightweight or midweight synthetic or merino wool blends work well for most walking and hiking conditions.

What material is best for walking base layers?

Synthetic blends are popular for their durability and quick drying performance, while merino wool offers natural temperature regulation and odour resistance. The best choice depends on conditions and activity level.

What is the 3 layer rule for hiking?

The three layer system includes a base layer to manage moisture, a mid layer for insulation, and an outer layer for weather protection. Together, they help regulate temperature and adapt to changing conditions.