Features 420D Nylon with Weather Proof coating Capacity: 36.5 Litre. Size: 20 X 18.5 X 9 Inches or 51 X 47 X 24 CM - Large size for longer excursions Deluxe Airmesh Padded Back with Anti-Abrasion Panel. AirMesh Padded Shoulder Straps with Removable Sternum Straps. Leightweight Designed with Waterproof Zippers and Contoured Rubber Zipper Pulls. 420D Nylon Fabric with Weather proof coating. Internal Organizer Zipper Pocket . Vertical Opening Front Pocket with Waterproof Zipper Reflective ALPINESTARS branding on the front Description This is an advance Welded Seam Technology and completely Stitchless SURF SERIES Dry Pack, the Slipstream utilizes the ultra-advance technilogy in bag construction. The Slipstream is ultra-leightweight and offers waterproof protection for your Laptop, tools and vauables .