The undersaddle xl saddlebag feature a covered zip to avoid rain and wheel spray from seeping in especially if you want to use it during the winter it39s big enough to house multiple spare tubes multitool tyre levers an inflator co2 canisters some patches and allow you to store a minipump in an elasticised mesh section on the underside of the saddlebag if you ride like the pros you39ll be able to fit a 23 tubular tyre multitool a co2 canister and mini pump into the bag