convertible backpack for the office and the outdoors . the patagonia refugio day 30l backpack is versatile and made from recycled polyester. its padded laptop compartment offers you an additional, small zipped pocket for small items, while the holder for your bike light ensures safety in the city.the hydration system holder makes this backpack a perfect companion in the jungle and the big city.a space miracle that is equipped for all eventualities and is also fair trade certifiedâ„¢-manufactured.