Don't overstuff your jersey pockets. Simplify your load by putting your essentials in Topeak's Aero Wedge Pack. It straps neatly beneath your seat and is constructed of durable 1200-denier, Teflon-coated polyester with reflective strips and a taillight mount for nighttime safety.
Capacity: 40 cubic inches
Dimensions: 7.1 x 3.3 x 4.3 inches
Weight: 100 grams