Waterproof. I've done several 7-12 mile runs in the rain, stayed dry and warm. Wets out when it is raining hard, but doesn't soak through.Breathable. Many runs on cool windy days where I sweat a bunch and the jacket does not get excessively moist inside.Light for a full featured jacket. Packs small. Durable, with a fantastic hood and pockets, and it looks good.Waterproof zippers: hard to start the main zipper. The chin guard is not sufficient, can be irritating on long runs.A solid jacket. If Montane changed the issue with the main zipper, they have a five star jacket. The function is fantastic and the form is superb. Looking for a jacket that works very well? Get this jacket.