This for sure the best hard shell you can buy, unless weight is not a factor to you. The jacket is CRAZY light and packs down into the chest pocket! A no brainer to throw into your pack for any outing. Watch the video on Patagonia web site of Colin Hayes wearing this in Patagonia (of all places)Also, the sizing says "slim fit". Well, Im not slim, 38" waist, and a large is what I always wear and this fit me perfet, with room for a layer under the shell.It's not cheap, but it's "Top of the line"