Norrona Wool One-Piece Long Underwear - Men's
NorronaWool One-Piece Long Underwear - Men's

King of the mountain.

When plummeting temperatures chase the crowds indoors, pull on the Norrona Men's Wool One-Piece Long Underwear and take advantage of having the mountain all to yourself. Made from merino wool and a touch of nylon, this baselayer offers the perfect combination of comfort, durability, and moisture-wicking power. Made for a variety of alpine activities, this one-piece suit will keep you warm at different activity levels. Zippers on the outer thigh let you dump heat fast when things start to heat up. A fitted hood provides extra protection from clawing cold. Wool's natural resistance to microbial growth reduces smell, so you'll be able to take it on your 3-day hut trip and not hate yourself by the end.

  • A one-piece baselayer made for a variety of alpine activities
  • Merino wool regulates temperature and is highly breathable
  • Natural resistance to microbial growth reduces smell
  • Outer thigh zippers provide ventilation
  • Fitted hood offers extra weather protection
  • Reviews
  • Q & A

Great for Hunting.

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small

I bought this to use for hunting and it works great! It doesn't bunch up or bind and it kept me good and warm.

Athletic Fit one piece

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: large

I've worn this 4 days in a row through a storm cycle and with no odor issues. Its warm, comfortable, and very well designed. I will point out that it is an athletic fit. At 6'1" and 170 lbs it fits snugly but not skin tight in a size large. Its a great piece.

Fits small compared to size chart

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: S

I bought the following to try them all out:

Airblaster - Merino Wool Ninja Suit (M)
Fits comfy, not too tight/big but it's pretty itchy. The 350 degree zip is noticeable just trying on the suit - not sure if it'd be noticeable once you're moving though.

Icebreaker - BodyFit 200 Zone One Sheep Suit (M)
Size is a little loose but overall really comfy. The material is not itchy and it looks like I'm in a wet-suit according to my wife.

Norrøna - Wool One-Piece Long Underwear (S)
Fits snug - should have gone w/a medium but the size chart indicates a M for me would work best. Material felt nice but I liked the Icebreaker more.

Patagonia - Capilene Thermal Weight One-Piece Suit (S)
Fits well (a little snug but not tight) but wasn't sold on the colour. The thumb hooks are very tiny and just not satisfying like a full thumb loop w/material over the knuckles.

Comfy all the time

    I went with this base layer as the other one pieces were out in my size. I'm glad they were because I really love this piece. It is extremely well made like all Norrona product. Very comfortable and breathable, easy to zip, no itch.

    Wool One Piece

    Reach out to me with any questions!