The Patagonia Refugio 30L Daypack is a durable backpack for all carrying needs. Daily life, travel, when there is stuff to bring, this pack is ready for the adventure. The 100% recycled polyester fabric is abrasion-resistant and treated with a durable water repellent finish to shed light moisture. Externally, the mesh pockets hold water bottles and the bungee cord quick-stashes a rain jacket or other layer. The 15" padded laptop sleeve is also removable, so leave it at home and lighten the load if the electronic isn't making the trip. There is plenty of small-pocket organization, in the main compartment and top pocket.