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...
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.
The Mini is the only seat pack a summer roadie will need.The Castelli Undersaddle Mini is just the perfect bag that any road rider has a use for. Super compact this fit and forget under saddle, seat pack can be crammed with a couple of road inner tubes...
