Alpinestars Slipstream Backpack Almost completely stitchless and sonic-welded, the Slipstream utilizes the most advanced technology in bag construction. The Slipstream is ultra-lightweight and offers weatherproof protection, ideal for enduring the elements. A padded laptop sleeve and internal organizer keep your tools safe and organized. Features Sized for Day Pack use Streamlined Designed 840D Polyester with Weather Proof Coating Welded Seam Construction Seams are Waterproof Internal Laptop Pocket Internal Organizer Two Small External Side Pockets Vertical Opening Front Pocket Airmesh Padded Back with Anti-Abrasion Panel Airmesh Padded Shoulder Straps Hip Belt Elastic Loops Secure Strap Tailends Removable Sternum Strap Water Proof Zippers Contoured Rubber Zipper Pulls Large Reflective Alpinestars Branding Alpinestars Hi-Visibilty Yellow Logo Lining 21.5 Liters 21x16x16