Prodact description: Airwave classic wedge saddle bags offer a hard wearing storage solution with neat, thoughtful design and secure fastening thanks to carefully chosen materials and technologies. Features: Bag Attachment: Clip and velcro fastening Material: 600D Polyester and 420D Nylon (Rip-stop)/1000D Cordura® Extendable in the Large and Medium sizes only Zip: YKK® 3M™ Reflective Stripe Size: Dimensions/Capacity/Weight Small: 15 x 9 x 8cm/400ml/85g Medium: 17.5 x 9 x 10cm/1000ml/106g Large: 20 x 11 x 11.5cm/1500ml/134g