FEATURES: Roll-top closure and durable, coated materials provide reliable weather protection Access your phone easily from dedicated pocket while in riding position Floating laptop sleeve fits comfortably on back while in natural riding position, holding up to 16" laptop Unzip side panels to expand capacity up to 50%, transitioning streamlined bag into high-capacity urban cargo hauler Stay visible in low light with reflective accents visible from all angles Generous storage space is ideal for the wide range of contents a bicycle commuter needs, including a change of clothes, jacket, lunch or groceries or groceries on the way home Large side pocket holds a water bottle or insulated container securely while riding or walking Exterior pockets keep bike lock and personal essentials in easy reach without digging deeper into bag Integration of shoulder strap shape and sternum strap position enhance stability while riding, improving safety, comfort and convenience without the need for a hip belt Ventilated back panel and shoulder straps stay comfortable on warm days Attach helmet to outside of bag while off the bike