Xlab stealth pocket 100 carbontop tube mounted storage that is optimised to increase aerodynamics for bikes with standard stems the sleek element deflecting material stands tough against perspiration and electrolyte drinks stay stocked for the ride internal storage comfortably fits up to 1 bar and 3 gels and the highly visible silver colour interior makes it easy to see contents and stay focused on the road features material non porous durable vinyl exterior reflective insulated interio