I was felt completely comfortable at -22 F (-30 degrees C) with everyday wear under a jacket. It is fully wind- and water- proof, plus keeps the heat inside. Adjusting the hood very comfortable. I am very pleased with the purchase and I want to thank Moosejaw for giving an unique discount! Anyway I would have bought this jacket even without the discount, and would recommend it to friends! I still discovering the functionality of this jacket. Amazing quality! This jacket protects me in Russian Tundra and will protect anyone anywhere!
The jacket is surprisingly light and it isn't bulky. It can be easily stowed or packed. The core loft performs well to heat you up. The warmth spreads almost immediately after putting it on and it doesn't get as sweaty as quickly as some other jackets.To the touch, the jacket is very soft compared to the Alpha SV. I know hat he Alpha SV Revised uses a slightly different material and it's also supposed to be less crinkly. As such, I'd be concerned about puncturing it. I haven't done any tests and the Alpha SV only punctured after a very hard fall on a rocky ledge.