Backcountry Research Gristle Fat Tube Saddle Strap. Designed to be a lightweight, minimalist solution for mounting accessories to the bike, the system is secure and versatile. Features: With the Gristle Fat Tube Strap, you can conveniently mount your backup butyl rubber under the saddle. It has enough capacity to also handle a small pump/CO2 and a tire lever, so you can put your bike-mounted luggage set back on the shelf until your next epic adventure Glove-friendly pull points, innovative dual shock-cord pre-load system, a single-side pull retention system for even quicker access to your goods, and the most intuitive installation you've seen this side of a light bulb make this strap special Sized to fit a plus sized tube or fat bike specific tube on its own or with CO2 cartridges, multi-tool or a mini pump with levers or whatever you want No juggling, rubber bands or one handed cinching. Two proprietary dual shockcord preload-strap keeps your tubes, levers, inflation and more tightly bound to keep your goodies from falling on the ground during installation Heavy duty Bartacks used on all shockcord stress points Sewn with industrial UV and rot resistant bonded polyester thread Built in Bozeman, MT USA Specifications: Pack Type: Saddle Strap (For Fat Bike Tubes) Pack Capacity: - Mount: Hook & Loop Strap Waterproof: - Material: Polyester Dimensions: - Color: Orange Weight: -