The 10 Best Men's Merino Wool Long Underwear
This wiki has been updated 22 times since it was first published in February of 2017. The advantages of Merino wool include powerful moisture-wicking properties, elasticity, odor control, and longevity. It is noticeably different from other wool because of the extra-fine fibers that make it particularly pleasant against the skin, while remaining durable. All of these qualities mean the fabric is well-suited for cold climate garments, and especially for long underwear. When users buy our independently chosen editorial picks, we may earn commissions to help fund the Wiki. If you'd like to contribute your own research to the Wiki, please get started by reviewing this introductory video.
September 26, 2020:
Comfort, style, and durability were our top priorities in selecting our men's merino wool long underwear. We also aimed to include a good mix of lightweight, medium weight, and heavy choices for a range of climates, along with both separates, and sets.
The WoolX X705 caught our attention because they have ankle cuffs that make them easy to slide beneath ski pants or jeans and dry quickly after washing. Unfortunately, the WoolX Explorer LS Top does poorly in the wash, developing pills and holes quickly, so we removed it during this update. The Jockey 8530 earned a place thanks to their strategically-placed seams throughout the thighs and rear that improve flexibility.
We also add the Minus33 Kancamagus and the Meriwool Base Layer, both of which come in several colors ranging from muted to bright. The Sportown Full-Length have a dated look and fit, so we took those off the list during this update. We appreciated the tailored look of the Meriwool Thermal Shirt and the Minus33 Ticonderoga, both of which work equally well as an outer layer.
Wanting to provide a full outfit for those seeking extra warmth from their neck down to their feet, we added the Lapasa M31 Set. Those needing something on the thicker side for seriously cold climates might like the WoolX X705.
October 22, 2018:
Updated with modern men's fashion options and a focus on sustainable textile manufacturing choices.
Wuru Wool 7/8 Tech Baselayer Pants The Wuru Wool 7/8 Tech Baselayer Pants are designed to feel like a second layer of skin, moving with the body, and showing almost no bulk beneath other clothing. They come in grey, black, and red, and have a comfortable and stylish thick waistband. While they are mostly merino wool, they do contain a small percentage of spandex and nylon. wuruwool.com
L.L. Bean Men's Cresta Wool Midweight Base Layer Bottoms The L.L. Bean Men's Cresta Wool Midweight Base Layer Bottoms have a comfortable fine-gauge knit and flat-lock seams that shouldn't itch or chafe. They have been gusseted to allow for a good range of motion, have a functional fly, and snug ankle cuffs for sliding into pants, but, unfortunately, they only come in black. llbean.com