The Rocket Pocket XL Plus is the ideal top tube mounted bag for racing or training to carry energy food and other items. Instant access while riding. Carries all your essential needs including Gels, Energy Bars, Salt or Electrolyte Tablets, Cell Phone, Driving License, and Keys etc. Features a large, one-handed zipper for ease of access and silver colored interior with red stretch interior mesh to find contents easily. The insulated sides keep your nutrition coller.