Merino Base Layers for Women & Men

Ready for anything, merino base layers for women and men deliver warmth and comfort in any climate. From hiking trails to everyday wear, these soft and breathable layers wick moisture while regulating temperature. Stay comfortable and warm, no matter your sport.
120 items
FORCLAZ Adult Mountain Trekking Merino Wool Liner Gloves - MT500 Grey
FORCLAZ
Adult Mountain Trekking Merino Wool Liner Gloves - MT500 Grey
£11.99
(1498)
SIMOND Men's Mountain Trekking Merino Wool Boxer Shorts MT500
SIMOND
Men's Mountain Trekking Merino Wool Boxer Shorts MT500
£17.99
2 colours
(1041)
FORCLAZ Men's Mountain Trekking Merino Wool Base Layer Tights / Leggings - MT500
FORCLAZ
Men's Mountain Trekking Merino Wool Base Layer Tights / Leggings - MT500
£39.99
(563)
FORCLAZ Merino wool mountain pants - MT500
FORCLAZ
Merino wool mountain pants - MT500
£14.99
(464)
FORCLAZ Men's long-sleeved travel trekking Merino wool T-shirt - TRAVEL 500 - blue
FORCLAZ
Men's long-sleeved travel trekking Merino wool T-shirt - TRAVEL 500 - blue
£27.99
2 colours
(710)
FORCLAZ Men's Long-sleeve 100% Merino Wool T-shirt - MT500
FORCLAZ
Men's Long-sleeve 100% Merino Wool T-shirt - MT500
£44.99
2 colours
(365)
FORCLAZ Women’s merino wool legging underwear - MT500
FORCLAZ
Women’s merino wool legging underwear - MT500
£39.99
(501)
FORCLAZ Women's Trekking & Travel Merino Wool T-Shirt - TRAVEL 500
FORCLAZ
Women's Trekking & Travel Merino Wool T-Shirt - TRAVEL 500
£27.99
2 colours
(823)
SIMOND Men's Boxers Mountain Trekking Merino Wool Base Layer MT500
SIMOND
Men's Boxers Mountain Trekking Merino Wool Base Layer MT500
£17.99
2 colours
(1041)
New lower price
FORCLAZ Bra Merino Wool MT500
FORCLAZ
Bra Merino Wool MT500
£27.99
Was £29.99
(414)
FORCLAZ Men’s short-sleeved Merino wool hiking travel t-shirt - TRAVEL 500 blue
FORCLAZ
Men’s short-sleeved Merino wool hiking travel t-shirt - TRAVEL 500 blue
£24.99
4 colours
(2439)
SIMOND Men’s short-sleeved Merino wool T-shirt, Merino Resist - Grey
SIMOND
Men’s short-sleeved Merino wool T-shirt, Merino Resist - Grey
£29.99
3 colours
(6)
Last chance
FORCLAZ Women's Long-sleeve Merino Wool T-shirt - MT500
FORCLAZ
Women's Long-sleeve Merino Wool T-shirt - MT500
£39.99
2 colours
(810)
FORCLAZ Men’s short-sleeved Merino wool hiking travel t-shirt - TRAVEL 500 grey
FORCLAZ
Men’s short-sleeved Merino wool hiking travel t-shirt - TRAVEL 500 grey
£24.99
4 colours
(2439)
SIMOND Men’s 100% Merino Wool Short-Sleeved T-shirt - 100% Merino, Khaki
SIMOND
Men’s 100% Merino Wool Short-Sleeved T-shirt - 100% Merino, Khaki
£34.99
2 colours
(3)
SIMOND 100% Merino wool short-sleeved men’s T-shirt - 100% Merino, Black
SIMOND
100% Merino wool short-sleeved men’s T-shirt - 100% Merino, Black
£34.99
2 colours
(3)
FORCLAZ Women's Travel Trekking Merino Wool Short-Sleeved T-Shirt - TRAVEL 500
FORCLAZ
Women's Travel Trekking Merino Wool Short-Sleeved T-Shirt - TRAVEL 500
£24.99
5 colours
(1518)
FORCLAZ Women’s Long-sleeve 100% Merino Wool T-shirt - MT500
FORCLAZ
Women’s Long-sleeve 100% Merino Wool T-shirt - MT500
£44.99
(281)
New lower price
SIMOND Men's Mountain Trekking Merino Wool Boxer Shorts MT900
SIMOND
Men's Mountain Trekking Merino Wool Boxer Shorts MT900
£21.99
Was £24.99
(50)
FORCLAZ Women’s Long-sleeved Merino Zipped Neck T-shirt - MT500
FORCLAZ
Women’s Long-sleeved Merino Zipped Neck T-shirt - MT500
£44.99
(356)
SIMOND Men's Merino wool short-sleeved Merino Wool T-shirt-Khaki
SIMOND
Men's Merino wool short-sleeved Merino Wool T-shirt-Khaki
£29.99
3 colours
(6)
FORCLAZ 100% Merino wool short-sleeved women’s T-shirt, 100% Merino wool - Black
FORCLAZ
100% Merino wool short-sleeved women’s T-shirt, 100% Merino wool - Black
£34.99
2 colours
(3)
ICEBREAKER Icebreaker Womens 200 Oasis LS Crewe Thermal Top - Black
ICEBREAKER
Icebreaker Womens 200 Oasis LS Crewe Thermal Top - Black
£84.50
Sold and shipped by Little Skiers
FORCLAZ Women’s Merino Wool Long-sleeved T-shirt, Merino Resist - Undyed
FORCLAZ
Women’s Merino Wool Long-sleeved T-shirt, Merino Resist - Undyed
£39.99
2 colours
(1)
Sale
FINDRA Fern Stripe Merino Base Layer
FINDRA
Fern Stripe Merino Base Layer
£65.00
£95.0031% off
6 colours
Sold and shipped by FINDRA
SIMOND Men's long-sleeved t-shirt, Merino Resist navy blue
SIMOND
Men's long-sleeved t-shirt, Merino Resist navy blue
£39.99
3 colours
(1)
FORCLAZ Men’s short-sleeved Merino wool hiking travel t-shirt - TRAVEL 500 yellow
FORCLAZ
Men’s short-sleeved Merino wool hiking travel t-shirt - TRAVEL 500 yellow
£24.99
4 colours
(2439)
FORCLAZ Men's Mountain Trekking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500
FORCLAZ
Men's Mountain Trekking Merino Wool Long-Sleeved T-Shirt with zip collar - MT500
£44.99
(488)
FORCLAZ MT900 MERINO WOOL BRA BLUE
FORCLAZ
MT900 MERINO WOOL BRA BLUE
£29.99
(13)
Last chance
FORCLAZ Women's Merino Wool Long-Sleeved Trekking T-Shirt - MT900
FORCLAZ
Women's Merino Wool Long-Sleeved Trekking T-Shirt - MT900
£59.99
2 colours
(269)
FORCLAZ Women’s Merino Wool Tank Top, Merino Fresh - Yellow
FORCLAZ
Women’s Merino Wool Tank Top, Merino Fresh - Yellow
£24.99
2 colours
(253)
Last chance
FORCLAZ Men's Long-sleeve T-shirt Merino Wool MT500
FORCLAZ
Men's Long-sleeve T-shirt Merino Wool MT500
£39.99
3 colours
(1326)
Last chance
FORCLAZ Men's Long-sleeve T-shirt Merino Wool MT500
FORCLAZ
Men's Long-sleeve T-shirt Merino Wool MT500
£39.99
3 colours
(1326)
SIMOND Men's Merino wool short-sleeved Merino wool T-shirt-brown
SIMOND
Men's Merino wool short-sleeved Merino wool T-shirt-brown
£29.99
3 colours
(6)
FORCLAZ Women’s Merino Wool Short-Sleeved T-shirt, Merino Resist - Yellow
FORCLAZ
Women’s Merino Wool Short-Sleeved T-shirt, Merino Resist - Yellow
£29.99
4 colours
(921)
FORCLAZ Women’s Short-Sleeved Merino Wool T-shirt, Merino Fresh - Brown
FORCLAZ
Women’s Short-Sleeved Merino Wool T-shirt, Merino Fresh - Brown
£24.99
5 colours
(1518)
FORCLAZ 100% Merino wool Short-Sleeved Women’s T-shirt - Green
FORCLAZ
100% Merino wool Short-Sleeved Women’s T-shirt - Green
£34.99
2 colours
(3)
FORCLAZ Merino wool mountain breeches - MT900
FORCLAZ
Merino wool mountain breeches - MT900
£17.99
(35)
Our choice
WEDZE Baby Merino wool thermal ski base layer, Top 900 blue
WEDZE
Baby Merino wool thermal ski base layer, Top 900 blue
£17.99
(26)
SIMOND Men's short-sleeved lyocell and Merino wool t-shirt, Merino Fresh grey
SIMOND
Men's short-sleeved lyocell and Merino wool t-shirt, Merino Fresh grey
£16.99
4.7/5 based on 41465 reviews collected online and in stores

Merino Base Layers for Men and Women

Merino wool thermals are your versatile companion for any climate, providing warmth and comfort wherever your adventures take you. Soft, breathable and moisture-wicking, they’re perfect for outdoor activities like hiking or skiing, as well as everyday wear. Designed to regulate body temperature, these thermals keep you comfortable and ready for any outdoor excursion.

Merino Thermals

Merino base layers for men and women are essential for staying comfortable in varying conditions. Acting as the first layer in an effective outdoor layering system, they help regulate your temperature while wicking away moisture to keep you dry. Lightweight yet insulating, merino wool is naturally odour-resistant and gentle on the skin, making it ideal for active lifestyles. Whether you’re on the hiking trail or heading out in colder weather, these base layers ensure performance and comfort. Browse Decathlon’s collection of thermals and base layers, and gear up for any activity.