Description of Icebreaker BodyFit260 Altitude 1/4-Zip Top - Long-Sleeve - Men's:
Wear the slim-fit Icebreaker Men's BodyFit260 Altitude Zip Midweight Top as a base layer for extreme high-altitude adventures. Merino wool fabric possesses insulating properties that synthetics just can't touch. For starters, it prolongs the period of time before your body breaks a sweat, keeping you dry and comfortable for longer hikes and more ski runs. Merino also wicks moisture and won't harbor unpleasant odors, so you can wear the long-sleeved Altitude Top for days or weeks in a row—your alpine climbing partner won't be any the wiser. The versatile zip collar gives you climate control—as well as changeable style—and the underarm gussets provide a natural range of motion for all your cold-weather athletic endeavors.
Bottom Line: The Icebreaker Altitude Midweight Top keeps you dry and comfortable throughout your distant-peak pursuits.
This is the only piece of ski wear I use everyday. I have 4 skis, 2 boots, and I dont know how many jackets, but they rotate. This goes out with me everyday (well I have more than one, but same style)It never smells, is warmer than poly pro, and dries almost as fast. I love the thumb loops. I have base layers from UA, TNF, SW, and Marmot. This wins hands down.
The only gripe I could produce is it does come up high on the neck. I like that style, but on one jacket, if the base is zipped its tough to zip the jacket all the way. More of a defect in the jacket than it is the base layer. If you don't want something to come high on your neck, look at the crew instead.
After running a total of 14 miles in two days in both incredibly hot and cold weather, it keep me both warm and cool and was incredibly breathable! Definitely a quality top, a little expensive, but def. worth the money in the end!
I ran a 10k in the rain during a cold Alaskan October, and am still lounging around the house in this shirt without washing; no smell. A bit pricey, but you will surely notice the difference in this fabric. It's a flippin' miracle.