Kriega UScombo30 Drypack SystemThe Kriega UScombo30 is a 30-litre capacity, 100% waterproof tailpack combination. It's composed of a US-20 Drypack functioning as an anchor for the system, topped by a US-10 Drypack. This uniquedesign solution secures the 'base' US-20 bag directly to the motorcycle sub-frame beneath the seat using included webbing buckle loops and Alloy Hook Straps. The US-10 stacks securely on top of the US-20, using a second set of included Alloy Hook Straps. The US-20 also comes equipped with removable shoulder and waist straps. It can be carried courier style, on or off the bike. The US-10 can fit on either side or on top of the US-20. Once connected together they can be removed as one single luggage 'block.'The Kriega UScombo30 tailpack is designed to fit most race-rep and regular style seat pads (all fitting straps included). The pack(s) are easily attached/removed via the included webbing loops / Alloy Hook Straps. No extra bungees or rain covers are required. The US-10 can attach to either side or on top of the US-20. To fit: insert US-10 Alloy Hooks in the dedicated webbing loops on the lower side of the US-20 bag and cinch the US-10 down. Secure loose strap ends with supplied Strap Keepers. Once connected the two packs can be removed from the bike as one luggage 'block'.Kriega US packs can also be used effectively on motorcycle racks or metal pannier tops by attaching 1 x set of the supplied webbing buckle loops to the item in question and following the same prodceedure as fitting to a motorcycle.Includes: (1)Kriega US-20 Drypack (1)Kriega US-10 Drypack (2) sets ofUS Alloy Hook Straps (2) sets of shoulder and waist straps Features: Waterproofing: roll top closure w/ a taped-seam waterproof liner 100% waterproof main body 420D Cordura Lite construction HYPALON: abrasion resistant re-enforcement DRYPACK: removable tape-seamed liner (white) Acetal ITW Airloc buckles YKK water-resistant zips US-20 - 400mm Hx 260mm Wx 190mm D(15.7" H x 10.2" W x 7.5" D) US-10 x 2 - 330mm Hx 220mm Wx 125mm D(13" H x 8.7" W x 4.9" D) 30-liter combined capacity 10-year warranty