FEATURES: Dimensions: 17.91 x 13.19 x 5.51 inches 23 liters capacity Recycled polyester construction has a durable water repellent (DWR) finish that sheds light precipitation Padded shoulder straps provide carrying comfort Reflective zipper pulls ensure low-light visibility Rear-access padded compartment stashes your laptop Internal slip and front pockets secure accessories and essentials Vista loop for attaching blinky bike lights (lights not included)