This is my second one which I had to give to my son who loves to run outside. We both enjoy it because it zips up past your nose. No need of extra gear when running. I've used one hunting in Colorado. Going after Elk you need light and moisture wicking in a base layer, this one fit the bill. I used it during the Arctic Vortex cold spell -20 while doing the snow. I just love this. If you no longer want to cary a scarf, this may be the thing for you.