The Orvis durable PRO Waterproof Backpack 30L, is constructed from 840-denier, abrasion- and puncture-resistant ballistic nylon, and then coated with .1mm TPU on both sides of the fabric. We've yet to see a more waterproof and thoroughly seam-sealed pack collection on the planet. Thirty waterproof liters of storage give you ample day pack capability and then some. With a slightly longer back panel, we've even rethought the way a pack capable of holding so much gear sits on your hips, yet wears like it's hardly even behind you. Features: Made from 840-denier, abrasion- and puncture-resistant ballistic nylon Coated with .1mm waterproof TPU on both sides Slightly longer back panel repositions lumbar straps better across hips for weight distribution Submersible, blow-out free, #10 TIZIPA(R) MasterSeal zipper Generous opening dimensions for easy access Perforated, 10mm foam padding shoulder straps and back panel Integrated back panel net scabbard and exterior D-ring Rod tube cam straps Water bottle pocket with retention leash IAccommodates our 3L Chest Pack and 2L Chest/Hip Pack 30L/1830 cu. in.