Great jacket for the price, used it for a ride up the Los Angeles Crest HWY were temperatures dipped down to the high 30's F. It does not breath as well has other ones, for the climb up I had to remove the sleeves which was no problem at all. On my descend down with the wind chill factor this jacket rocked!! I was able to make it down hill without stopping to warm up. The sleeve zippered up with no problem. I have unzipped them off twice and experience no problems with the zipper. For the price this jacket is great for cold weather.