The Gordo is one of our water resistant, extra durable range of seat bags. We make use of sonic welded seams and nylon fabric impregnated with thermoplastic polyurethane. Think frogman raft. The straps are also nylon and wider than usual, like seat belts in planes and cars. A wider strap means more Velcro area for better security. The materials we chose cost more but in exchange, you have a seat bag that should last a good long time.
Price: £32.00 from Tredz
The Uno is small, only enough space for a road inner tube plus gas and maybe a couple of Allen wrenches. It also fits under the saddle nicely when cinched tight. It rides horizontally while our other bags hang vertically.