Made of recycled polyester Spacious 38L capacity Lightweight for easy carrying 5 compartments provide high capacity storage Multi-use built-in organizer Fits most 16" laptops 2 side zippered pockets for quick access to small items Side mesh pocket to carry water bottle or other small items Reflective accent for added visibility and safety Comfortable padded back Daisy webbing chain for accessories Dimensions (L × W × H): 45.5 cm × 33.5 cm × 21 cm (18 in. × 13.25 in. × 8.25 in.) Weight: 0.65 kg (1.43 lb.)