A 100% waterproof drypack that retro-fits to the Kriega R25, R20, R15, and Hydro 3 packs with quick-release buckles, increasing capacity by 305 cubic inches. It also doubles as a bolt-on fender pack for enduro or supermoto bikes; included straps stay bolted on bike for quick attachment/removal of pack. Roll-over closure for total weather and dirt protection. Removable and washable liner. 3.9"×11.8"×6.3", 10.5 oz.