Ortlieb Velocity PS Backpack Description: The Ortlieb Velocity PS backpack is a waterproof, roll-top messenger style pack with organization and comfort features that will make all-day use a welcomed task. Features: Roll-top messenger style backpack with comfort and accessory features Foam ventilated back-panel and shoulder straps increase breathability Waterproof PU-coated Nylon is free of PVS, PFC, and BPA Adjustable waist and sternum stabilization straps can be removed for custom strap layout Interior zippered organizer and 15.4" laptop sleeve makes bag organization a breeze Carrying handle and bike light/helmet fixing make traveling to work or class with a bike easy Specifications: Pack Type: Duffle Bag/Gear Bag Pack Capacity: 17L Mount: Straps Waterproof: Yes Material: Polyurethane-coated Nylon Dimensions: 11 x 17.7 x 5.5" (17L) Color: Red Weight: 730g (17L)