Merino Wool Base Layers

The base layer, or thermal underwear, is the most important factor in comfortable clothing: it sits directly against your skin and wicks moisture away. For outdoor activities, merino wool base layers are an unbeatable choice.The base layer, or thermal underwear, is the most important factor in comfortable clothing: it sits directly against your skin and wicks moisture away. For outdoor activities, merino wool base layers are an unbeatable choice. They regulate temperature fluctuations, keeping you consistently comfortable even during breaks. Practical experience has also proven merino wool’s excellent odor-resistance.  
SmartWool Men's Classic Thermal Bottom
$67.53
SmartWool Men's Classic Thermal Bottom
Men's warm Merino base layer bottom for cool and cold weather, and for use in a sleeping bag.
SmartWool Men's Classic Thermal 3/4 Bottom
$49.52
SmartWool Men's Classic Thermal 3/4 Bottom
Men's warm Merino base layer bottom for cool and cold weather. 3/4 length for great function with skiing boots.
Devold Expedition Merino 235 Long John
-19%
Outdoor days
$71.94$89.14
Devold Expedition Merino 235 Long John
Men's two layer, very warm merino wool long johns.
Devold Duo Active W Shirt
$71.94
Devold Duo Active W Shirt
Merino wool surface, itch-free synthetic inside.
Devold Expedition Merino 235 Man Zip Neck
-24%
Outdoor days
$80.95$107.15
Devold Expedition Merino 235 Man Zip Neck
Test winning, warm merino wool base shirt for men.
Devold Lauparen Shirt Man
-18%
Outdoor days
$62.94$76.44
Devold Lauparen Shirt Man
A lightweight merino top for men. Great for hiking and active sports.
Mons Royale Women's Hannah Hot Pant
$40.47
Mons Royale Women's Hannah Hot Pant
Merino wool hot pants for women.
Mons Royale Cascade W 200 LS
$80.95
Mons Royale Cascade W 200 LS
Slim fit Merino top for women.
Aclima Women's WoolNet Crew
-18%
Outdoor days
$80.95$98.14
Aclima Women's WoolNet Crew
Women's wool mesh base layer top - perfect for cold weather activities.
Mons Royale Hold'em Shorty Boxer
$22.51
Mons Royale Hold'em Shorty Boxer
No-nonsense shorties for serious outdoor use.
Devold Expedition Lady Zip Neck
-24%
Outdoor days
$80.95$107.15
Devold Expedition Lady Zip Neck
Women's two-layer, warm merino wool under layer shirt with zipped collar.
Devold Berle Merino Bra
-23%
Outdoor days
$52.13$67.53
Devold Berle Merino Bra
Merino wool bra with light support.
Aclima Men's WoolNet Longs
-18%
Outdoor days
$80.95$98.14
Aclima Men's WoolNet Longs
Men's wool mesh base layer pants - perfect for cold weather activities.
Devold Lauparen Tee Man
-19%
Outdoor days
$58.44$71.94
Devold Lauparen Tee Man
A lightweight merino tee for men. Great for hiking and active sports.
Devold Lauparen Shirt Woman
-18%
Outdoor days
$62.94$76.44
Devold Lauparen Shirt Woman
A lightweight merino top for women. Great for hiking and active sports.
SmartWool 150 Basel W Bottom
$49.43
SmartWool 150 Basel W Bottom
Women's Merino wool base layer pants.
SmartWool Women's Merino Thermal Bottom
$71.94
SmartWool Women's Merino Thermal Bottom
Warm Merino base layer pants for women.
Mons Royale Cascade 200 Legging
$62.94
Mons Royale Cascade 200 Legging
Merino wool base pants for men.
SmartWool Women's Classic Thermal Merino Base Layer 1/4 Zip
$102.65
SmartWool Women's Classic Thermal Merino Base Layer 1/4 Zip
A slim fit base top for women with quarter zip, with 100% Merino wool.
Devold Wool Fleece Bra
$31.51
Devold Wool Fleece Bra
Warm bra is perfect for winter activities.
Supernatural Better Bike Tee
-25%
Outdoor days
$53.93$72.03
Supernatural Better Bike Tee
Merino blend tee for men.
Svala Merino Cordura Zip Neck
$80.95
Svala Merino Cordura Zip Neck
Merino Cordura zipneck for base layer use.
Mons Royale Hannah Hot Pant
$40.47
Mons Royale Hannah Hot Pant
Merino wool hot pants for women.
Svala Men's Merino Cordura Boxer
$28.72
Svala Men's Merino Cordura Boxer
Warm and durable Merino blend boxers for men.
Svala Merino Cordura Shirt
$71.94
Svala Merino Cordura Shirt
Merino Cordura blend top for base layer use.
Devold Lauparen Tee Woman
-19%
Outdoor days
$58.44$71.94
Devold Lauparen Tee Woman
A lightweight merino tee for women. Great for hiking and active sports.
Mons Royale Folo Brief Woman
$35.97
Mons Royale Folo Brief Woman
Merino wool panties for women.
SmartWool Women's Classic Merino 1/4 Zip Long Sleeve
$80.95
SmartWool Women's Classic Merino 1/4 Zip Long Sleeve
A base top for women with quarter zip, with 100% Merino wool.
Devold Lauparen Boxer Man
$41.33
Devold Lauparen Boxer Man
Men's Merino wool boxers.
Devold Duo Active Zip Neck Men
$80.95
Devold Duo Active Zip Neck Men
A dual layer base zip neck for men.
Svala Women's Merino Design Pääsky Pants
$58.44
Svala Women's Merino Design Pääsky Pants
Merino base layer pants with dove graphics. Made in Finland.
Devold Lauparen Longs Man
-18%
Outdoor days
$62.94$76.44
Devold Lauparen Longs Man
Lightweight Merino base layer pants for men - a great choice for active endeavors.
Devold Lauparen Longs Woman
-18%
Outdoor days
$62.94$76.44
Devold Lauparen Longs Woman
Lightweight Merino base layer pants for women - a great choice for active endeavors.
Mons Royale Olympus 3,0 Half Zip Women
$89.13
Mons Royale Olympus 3,0 Half Zip Women
A thick Merino top for women.
SmartWool Men's Boxer Brief
$35.97
SmartWool Men's Boxer Brief
Men's boxer briefs for multiple uses, with 56% of Merino wool.
Devold Expedition Merino 235 Lady Long John
-19%
Outdoor days
$71.94$89.14
Devold Expedition Merino 235 Lady Long John
Women’s two-layer, warm merino wool under layer long johns.
Mons Royale Olympus Legging
$76.53
Mons Royale Olympus Legging
Men's Merino blend leggings.
Devold Duo Active Zip Neck Woman
$80.95
Devold Duo Active Zip Neck Woman
A dual layer base zip neck for women.
Mons Royale Olympus Half Zip
$89.14
Mons Royale Olympus Half Zip
Warm Merino base top for men.
Devold Duo Active Man Long Johns
$71.94
Devold Duo Active Man Long Johns
Men's base layer pants.
Mons Royale Hold'em Boxer
$44.97
Mons Royale Hold'em Boxer
No-nonsense boxers for serious outdoor use.
Devold Duo Active Man Shirt
$71.94
Devold Duo Active Man Shirt
Dual layer base shirt for men.
Devold Duo Active Woman Long Johns
$71.94
Devold Duo Active Woman Long Johns
Women's base layer pants.
SmartWool Men's Classic Merino NTS Crew
$62.13
SmartWool Men's Classic Merino NTS Crew
Men's Merino base layer for many sports. Slim fit.
Devold Lauparen Zip Neck
$80.95
Devold Lauparen Zip Neck
Merino zip neck for men. Lightweight material - a great choice for hiking and active sports.
Devold Men's Tuvegga Merino 3/4
$98.14
Devold Men's Tuvegga Merino 3/4
Reversible base layer underpants - choose which side to wear depending your activity. 3/4 length legs.
Aclima Lars Monsen Femunden Longs Women
$76.53
Aclima Lars Monsen Femunden Longs Women
Women's Merino long johns with fit enhancing rib panels.
Metsä/Skogen Metsänsuojelulahjoitus, Expedition Long John & Expedition Woman Zip Neck
$243.20
Metsä/Skogen Metsänsuojelulahjoitus, Expedition Long John & Expedition Woman Zip Neck
Metsänsuojelulahjoitus ja huippulaadukas merinovillainen alusasu kylmään säähän. Naisten koot.
Devold Lämmin setti ulkoiluun naisille
$183.59
Devold Lämmin setti ulkoiluun naisille
Lämmin setti ulkoiluun naisille
Devold Lämmin setti ulkoiluun miehille
$183.59
Devold Lämmin setti ulkoiluun miehille
Lämmin setti ulkoiluun miehille
Mons Royale Cascade 200 3/4 Legging
$59.34
Mons Royale Cascade 200 3/4 Legging
Merino wool base pants for men, with three quarter legs.
Mons Royale Icon LS
$80.99
Mons Royale Icon LS
Merino wool top for men.
Devold Tuvegga Sport Air Woman Shirt
$107.16
Devold Tuvegga Sport Air Woman Shirt
Reversible Merino base top: choose between extra warmth or extra breathability.
Supernatural Kids Tundra Flear Set
$62.94
Supernatural Kids Tundra Flear Set
The luxurious warmth of Merino wool in children's sizing!
Devold Men's Running Merino 130 Shirt
$94.54
Devold Men's Running Merino 130 Shirt
A base top for men, with ample Merino wool.
Devold Women's Running Merino 130 Shirt
$94.54
Devold Women's Running Merino 130 Shirt
A base top for women, with ample Merino wool.
Devold Women's Tuvegga Merino 3/4
$98.14
Devold Women's Tuvegga Merino 3/4
Reversible base layer underpants - choose which side to wear depending your activity. 3/4 length legs.
Mons Royale Stella X-back Bra
$45.02
Mons Royale Stella X-back Bra
Light support for low-impact exercise, made of a Merino wool mix.
Devold Tuvegga Sport Air Woman Long Johns
$107.16
Devold Tuvegga Sport Air Woman Long Johns
Reversible base layer underpants - choose which side to wear depending your activity.
SmartWool Women's Classic Merino Plus 1/4 Zip Long Sleeve
$71.13
SmartWool Women's Classic Merino Plus 1/4 Zip Long Sleeve
A plus fit base top for women with quarter zip, with 100% Merino wool.
Supernatural Men's Windbreaker Long Sleeve
$67.53
Supernatural Men's Windbreaker Long Sleeve
Windproof front panel, 50% Merino wool and 50% polyester - a great, relatively thin choice for active endeavours.
Supernatural Men's Skiing Roll Neck
$62.94
Supernatural Men's Skiing Roll Neck
50% Merino, 50% polyester: men's top for active outdoor use.
Mons Royale Yotei BF Tech LS Women's
$76.53
Mons Royale Yotei BF Tech LS Women's
The original Mons Royale long sleeve baselayer shirt for women.
SmartWool Women's Classic Merino Plus Crew
$71.13
SmartWool Women's Classic Merino Plus Crew
A plus fit base top for women with crew collar, with 100% Merino wool.
Mons Royale Folo Brief
$35.93
Mons Royale Folo Brief
Women's Merino briefs.
Mons Royale Cascade 200 1/4 Zip LS
$80.14
Mons Royale Cascade 200 1/4 Zip LS
Merino base top for men.
Svala Women's Merino Cordura Boxer
$28.72
Svala Women's Merino Cordura Boxer
Warm and durable Merino blend boxers for women.
Devold Nibba Fleece Merino Bra
$71.13
Devold Nibba Fleece Merino Bra
Merino wool bra.
Supernatural Women's Skiing Rollneck
$90.04
Supernatural Women's Skiing Rollneck
50% Merino, 50% polyester: women's top for active outdoor use.
Devold Tuvegga Sport Air Man Shirt
$107.16
Devold Tuvegga Sport Air Man Shirt
Reversible Merino base top: choose between extra warmth or extra breathability.
Devold Tuvegga Sport Air Man Long Johns
$107.16
Devold Tuvegga Sport Air Man Long Johns
Reversible base layer underpants - choose which side to wear depending your activity.
Svala Merino Bermuda
$38.63
Svala Merino Bermuda
Merino wool panties.
Supernatural Women's Flear Roll Neck
$53.93
Supernatural Women's Flear Roll Neck
A beautiful rollneck with Supernatural's 50/50 Merino polyester blend.
Svala Merino Cordura Pants
$62.94
Svala Merino Cordura Pants
Merino Cordura blend pants for base layer use.
Mons Royale Olympus 3.0 W Legging
$76.53
Mons Royale Olympus 3.0 W Legging
Thicker Merino leggings.
SmartWool Women's Classic Merino Plus Bottom
$71.13
SmartWool Women's Classic Merino Plus Bottom
Plus fit base pants for women, with 100% Merino wool.
Devold Lauparen Zip Neck Woman
$80.95
Devold Lauparen Zip Neck Woman
Merino zip neck for women. Lightweight material - a great choice for hiking and active sports.
Mons Royale Olympus 3.0 LS
$80.95
Mons Royale Olympus 3.0 LS
A thick Merino top for men.
Devold Duo Active Women's Boxer
$38.63
Devold Duo Active Women's Boxer
Merino wool surface, itch-free synthetic inside.
Aclima Women's WoolNet Longs
-18%
Outdoor days
$80.95$98.14
Aclima Women's WoolNet Longs
Women's wool mesh base layer pants - perfect for cold weather activities.
Mons Royale Sierra Sports Bra
$45.02
Mons Royale Sierra Sports Bra
Merino wool sports bra.
Devold Lauparen Boxer Woman
$41.33
Devold Lauparen Boxer Woman
Women's Merino wool boxers.
Devold Duo Active Windstopper Boxer
$38.63
Devold Duo Active Windstopper Boxer
Merino wool surface, itch-free synthetic inside. Men's model.
Halti Women's Hossa Merino Set
$89.95
Halti Women's Hossa Merino Set
100% Merino wool base layer for women, for cool and cold weather.
Halti Men's Hossa Merino Set
$89.95
Halti Men's Hossa Merino Set
100% Merino wool base layer for men, for cool and cold weather.
Devold Women's Jakta Merino 200 3/4 Pant
$62.13
Devold Women's Jakta Merino 200 3/4 Pant
Three quarter length base pants for women, 100% warm Merino wool.
Devold Men's Jakta Merino 200 3/4 Pant
$62.13
Devold Men's Jakta Merino 200 3/4 Pant
Three quarter length base pants for men, 100% warm Merino wool.
Devold Breeze Longjohn
$62.13
Devold Breeze Longjohn
Thinner Merino base pants for men.
Supernatural Base Tight W 175
$18.01
Supernatural Base Tight W 175
Merino wool blends for women.
Devold Hiking 3/4 Pants Women
$35.93
Devold Hiking 3/4 Pants Women
Light underwear for women, made of 100% Merino wool