We don't just say it, we live by it: Athlete Tested. Expedition Proven.(TM) It might look like a puffer, but this jacket has been put to the test in some of the harshest conditions on earth. That's how we innovate. We find the crux, improve our beta and build it better. Adapted to the high alpine as a flexible mid layer or as an uncompromising outer layer, it thrives no matter where you take it. With highly compressible, water-repellent 800-fill ProDown(TM), you can move lighter and faster through the mountains or the daily elements. Engineered for mobility. Fit & Design: Slim fit jacket Exposed, #3 YKK(R) VISLON(R) center front zip with an insulated internal draft flap Hand pockets with exposed, water-resistant, reverse-coil zips Internal hem cinch-cord with a single-point adjustment Raglan sleeves and underarm gussets for full arms-up mobility Secure-zip chest pocket with an exposed, water-resistant, reverse-coil zip Stows in left hand pocket Stretch-knit cuffs with FlashDry(TM) for added comfort and a close-to-wrist fit Two large, internal drop-in pockets Technology: 800 fill Prodown(TM) retains its loft in wet conditions and offers high-level warmth and compressibility Pertex(R) Y fuse increases the downproof and water-beading properties of the fabric Additional Details: Center back: 27'' Avg Weight: 12.45 oz (353 g)