Runs a little big, as you can expect a normal snowboarding brand to run, especially burton. I didn't really like the zipper that much, it seemed like the zipper would always get stuck. Now i know that most water proof zippers don't slide as easily as normal zippers, but this one that I had would be really hard to zip up. I am not sure if that was normal or if i got a busted one.
Besides the zipper, it was super waterproof and really light so it was a pretty good combo.