Thermals & Base Layers

Thermals & Base Layers

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Merino Wool
Smartwool Women's Classic Thermal Merino 250 Long Sleeve 1/4 Zip Base Layer Top (Twilight Blue Heather) Smartwool Women's Classic Thermal Merino 250 Long Sleeve 1/4 Zip Base Layer Top (Twilight Blue Heather)
Save 30%
Smartwool Men's Classic All-Season Merino 150 Long Sleeve Base Layer Top Nightfall Blue P43 SW016953 Smartwool Men's Classic All-Season Merino 150 Long Sleeve Base Layer Top Nightfall Blue P43 SW016953
Merino Wool
Smartwool Men's Classic Thermal Merino 250 Base Layer Bottoms Charcoal Heather 010 SW016362 Smartwool Men's Classic Thermal Merino 250 Base Layer Bottoms Charcoal Heather 010 SW016362
Smartwool Women's All Season Merino 150 Long Sleeve Base Layer Top (Boxed)(Purple Storm Mountain) Smartwool Women's All Season Merino 150 Long Sleeve Base Layer Top (Boxed)(Purple Storm Mountain)
Save 30%
Smartwool Women's All Season Merino 150 Long Sleeve Base Layer Top (Boxed)(Pacific Blue) Smartwool Women's All Season Merino 150 Long Sleeve Base Layer Top (Boxed)(Pacific Blue)
Sprayway Women's Effra Crew Neck Base Layer Top (Black) Sprayway Women's Effra Crew Neck Base Layer Top (Black)
Sprayway Women's Effra Half Zip Base Layer Top (Black) Sprayway Women's Effra Half Zip Base Layer Top (Black)
Helly Hansen Men's Lifa Merino Midweight Crew Neck Base Layer Top Black 990 49364 Helly Hansen Men's Lifa Merino Midweight Crew Neck Base Layer Top Black 990 49364
Merino Wool
Smartwool Women's Classic Thermal Merino 250 Long Sleeve Crew Neck Base Layer Top (Charcoal Heather) Smartwool Women's Classic Thermal Merino 250 Long Sleeve Crew Neck Base Layer Top (Charcoal Heather)
Merino Wool
Smartwool Men's Classic Thermal Merino 250 Quarter Zip Long Sleeve Base Layer Top Deep Navy 092 SW002822 Smartwool Men's Classic Thermal Merino 250 Quarter Zip Long Sleeve Base Layer Top Deep Navy 092 SW002822
Merino WoolSave 29%
Smartwool Men's Classic Thermal Merino 250 Quarter Zip Long Sleeve Base Layer Top Black 001 SW002822 Smartwool Men's Classic Thermal Merino 250 Quarter Zip Long Sleeve Base Layer Top Black 001 SW002822
Merino WoolSave 30%
Smartwool Women's Classic Thermal Merino 250 Crew Neck Long Sleeve Base Layer Top (Winter Sky Heather) Smartwool Women's Classic Thermal Merino 250 Crew Neck Long Sleeve Base Layer Top (Winter Sky Heather)
Merino Wool
Smartwool Women's Classic Thermal 250 Long Sleeve Quarter Zip Base Layer Top Black 001 SW002829 Smartwool Women's Classic Thermal 250 Long Sleeve Quarter Zip Base Layer Top Black 001 SW002829
Smartwool Men's Classic All-Season Merino Base Layer Top Iron Heather D36 SW016953 Smartwool Men's Classic All-Season Merino Base Layer Top Iron Heather D36 SW016953
Helly Hansen Men's Lifa Merino Midweight Base Layer Bottoms Black 990 49366 Helly Hansen Men's Lifa Merino Midweight Base Layer Bottoms Black 990 49366
Helly Hansen Men's Lifa Merino Midweight Half Zip Base Layer Top Black 990 49363 Helly Hansen Men's Lifa Merino Midweight Half Zip Base Layer Top Black 990 49363
Helly Hansen Women's Lifa Active Crew Neck Long Sleeve Base Layer Top (Black) Helly Hansen Women's Lifa Active Crew Neck Long Sleeve Base Layer Top (Black)
Helly Hansen Men's Lifa Active Long Sleeve Crew Baselayer Black 990 49389 Helly Hansen Men's Lifa Active Long Sleeve Crew Baselayer Black 990 49389
Merino Wool
Smartwool Women's Classic Thermal Merino 250 Base Layer Bottoms Black 001 SW018809 Smartwool Women's Classic Thermal Merino 250 Base Layer Bottoms Black 001 SW018809
Merino Wool
Smartwool Women's Classic Thermal Merino 250 Crew Neck Long Sleeve Base Layer Top (Twilight Blue Heather) Smartwool Women's Classic Thermal Merino 250 Crew Neck Long Sleeve Base Layer Top (Twilight Blue Heather)
Merino Wool
Smartwool Men's Classic Thermal Merino 250 Base Layer Top Quarter Zip Charcoal Heather 010 SW002822 Smartwool Men's Classic Thermal Merino 250 Base Layer Top Quarter Zip Charcoal Heather 010 SW002822
Smartwool Men's Classic All-Season Merino 150 Base Layer Bottoms Black 001 SW016959 Smartwool Men's Classic All-Season Merino 150 Base Layer Bottoms Black 001 SW016959
Merino Wool
Smartwool Men's Classic Thermal Merino Base Layer Crew Charcoal Heather 010 SW016350 Smartwool Men's Classic Thermal Merino Base Layer Crew Charcoal Heather 010 SW016350
Merino Wool
Smartwool Men's Classic Thermal Merino Base Layer Crew Winter Moss K66 SW016350 Smartwool Men's Classic Thermal Merino Base Layer Crew Winter Moss K66 SW016350

Thermals & Base Layers

Lock in essential core warmth with our collection of high-performance thermals and base layers from world-leading outdoor brands. The foundation of any effective layering system, a quality base layer manages moisture, regulates body temperature, and keeps you comfortable whether you are hiking frost-covered trails, heading off on a ski trip, or battling cold winter mornings at home.

We stock top-tier thermal tops and leggings from Smartwool, Columbia, and Helly Hansen, offering options in both natural Merino wool and high-tech synthetics.

Choose the Right Base Layer for Your Activity:

  • 100% Merino Wool Base Layers: Featuring premium Merino wool tops and bottoms from Smartwool, ideal for maximum warmth, natural odor resistance, and breathability during multi-day hikes or extreme cold.
  • Synthetic Technical Thermals: Fast-drying, high-wicking synthetic baselayers from Helly Hansen (featuring legendary LIFA® technology) engineered for high-intensity activities where sweat management is critical.
  • Thermal Reflective Layers: Advanced thermal tops from Columbia utilizing Omni-Heat™ technology to reflect body heat back to you without adding heavy bulk.
  • Thermal Tops & Bottoms: Choose from crew necks, half-zips, and matching thermal leggings designed for smooth, chafe-free layering under fleeces and waterproof jackets.

Find your perfect cold-weather foundation from our trusted brand lineup today, with fast nationwide delivery across Ireland.