Mammut All-Year Zip Shirt - Long-Sleeve - Men's - 2009 BCS

... when you do not want to get sunburnt. the itchyness mentioned goes away once washed or just rinsed in cold water before wearing it the first time.

very good combination of fabrics! have two generations of them they get better and better!

Perfect for layering. Warm and comfortable. Can't go wrong with Mammut!

I'm 6'3", 225, 44xl jacket. Bought size XL. The shirt was long enough in the body and arms and not too baggy, although the arms were tight and constricting as there is no spandex-like material there, thus no stretch. I tried this on next to skin and within moments, I felt itchiness on my arms. I assumed because wool is first in the material description that it would be dominant. Nope. It's only 26% wool and I can't tell where it's located. It goes back.

wicks perfectly and keeps you warm all the time. good design as well. superiour quality. would buy it again

Very good quality, warm, overall a great purchase, but buyer beware it runs one size small. I usually wear a good medium and ordered a large(b/c I read a warning like this one) and it is a perfect fit!

One of the best I have worn. Keeps me dry and warm, certainly wicks better than capaleine I used to wear for ski touring. Never felt wet on the way up and therefore much warmer on the way down hill. Bought an XL I am 6'2 190 pounds, have plenty of room in the arms and body. If I was a bit more fit, I would buy the L for a real athletic baselayer fit.