Patagonia Petrolia Backpack 28l Strong, lightweight, body and base are made with 100% recycled polyester, all with a DWR (durable water repellent) finish Cavernous main compartment; multiple zippered stash pockets and large stretch front pocket Dedicated side-access laptop pocket holds most 15" laptops and is raised off the ground to protect electronics; doubles as an insulated hydration reservoir pocket with tube port Air-Flow mesh shoulder straps and back panel; adjustable sternum strap Stretch-woven pockets hold a wide range of water-bottle shapes and sizes Top-mounted, reinforced haul handle Body: 7.5-oz 450-denier 100% recycled polyester plain weave. Base: 7.85-oz 450-denier 100% recycled polyester ripstop. Lining: 200-denier 100% polyester. Stretch pockets: 66% nylon/34% spandex. All treated with a DWR (durable water repellent) finish 779 g (27.5 oz) Made in Vietnam.