The Castelli Undersaddle XL is a practical, stylish, user-friendly saddle bag that’s designed to cope with unpleasant wet weather conditions featuring a covered zip and simple, easily adjustable Velcro straps to hold it firmly in place. There’s plenty of room to store multitools, CO2 cartridges, spare tubes and puncture repair kit while a mesh underside allows you to store additional items externally. Featuring: Water resistant construction. Covered zip. Adjustable Velcro loops. External mesh pocket. Internal pocket. Reflective detailing. Size: 6x15x6cm.