We've compared over 200 base layers and selected the best ones for each season and purpose, and how to choose the perfect one for you.
CAYL , base layers , HERENESS , ibex , Patagonia , Mountain Hardwear , NORRONA , Rab , comparison , THE NORTH FACE , mountaineering tips , how to choose , recommendations
Written by Yasushi Hisatomi
![[A self-paying review without any consideration] Workman's Merino wool underwear and accessories are seriously ranked from the perspective of a minimalist hiker [Can you use it on the mountains? 】](https://outdoorgearzine.com/wp-content/uploads/IMG_8398-2.jpeg "[A self-paying review without any consideration] Workman's Merino wool underwear and accessories are seriously ranked from the perspective of a minimalist hiker [Can you use it on the mountains? 】")
![[A self-paid review without any consideration] This winter, alpaca wool has been hot with its heat retention and sweat-removing ability, which surpasses merino wool. "Arms of Andes" base layer review](https://outdoorgearzine.com/wp-content/uploads/DSC08860.jpg "[A self-paid review without any consideration] This winter, alpaca wool has been hot with its heat retention and sweat-removing ability, which surpasses merino wool. "Arms of Andes" base layer review")
![[A self-paying comparison review without any consideration] A girl who loves mountains will compare her clothes! Comparison review of wool, synthetic fiber and hybrid, winter base layer](https://outdoorgearzine.com/wp-content/uploads/IMG_20220106_165715.jpg "[A self-paying comparison review without any consideration] A girl who loves mountains will compare her clothes! Comparison review of wool, synthetic fiber and hybrid, winter base layer")
![[A self-paying review without consideration] A selection of 40 or more base layers, and by actual comparison of the best buys by scene and purpose.](https://outdoorgearzine.com/wp-content/uploads/DSC01584.jpg "[A self-paying review without consideration] A selection of 40 or more base layers, and by actual comparison of the best buys by scene and purpose.")
![[A self-paying review without any consideration] Future is here! THE NORTH FACE Expedition Dry Dot Crew Sweat-absorbing, quick-drying, and smooth. A dangerous guy who can play multiple roles on just one card](https://outdoorgearzine.com/wp-content/uploads/DSC09740_catch.jpg "[A self-paying review without any consideration] Future is here! THE NORTH FACE Expedition Dry Dot Crew Sweat-absorbing, quick-drying, and smooth. A dangerous guy who can play multiple roles on just one card")
![Ambassador check out Workman's new autumn/winter releases! [5] Review of tops that can be used for winter mountain climbing](https://outdoorgearzine.com/wp-content/uploads/DSC02950.jpg "Ambassador check out Workman's new autumn/winter releases! [5] Review of tops that can be used for winter mountain climbing")
![Review: icebreaker Merino Wool Base Layer Zone Series The latest Merino Wool is not just about "warm!"](https://outdoorgearzine.com/wp-content/uploads/DSC08445.ARW_b.jpg "Review: icebreaker Merino Wool Base Layer Zone Series The latest Merino Wool is not just about "warm!"")