The Stealth Pocket is perfect for holding the essentials and it actually reduces drag caused by stem and headset spacers. Features: Mounts to bikes with top tube bosses Non-slip surfaces underneath and on the front of the bag reduces bag movement Non-slip rubber zipper pull for easy one-hand operation Silver colored interior makes it easy to find contents and features a stretch mesh pocket small items Sleek, element-deflecting material withstands wear, perspiration and electrolyte drinks Specifications: Pack Type: Top Tube Bag Pack Capacity: 0.38L Mount: Top Tube Bosses (Requires Frame w/ Mounts) Waterproof: Water-Resistant Material: Vinyl Dimensions: 10.5 x 2.1 x 1.5" (Length x Height x Width) Color: Black Weight: 101g