The most simple and versatile feedbag on the market. Roomy enough for XXL hands. Drain hole bottom to prevent nastiness inside. One-handed closing. Potential one-handed opening depending on your dexterity. Attaches to bar/stem and fork crown....or many other locations. Dimension Polyant XPAC VX-21 waterproof fabric exterior. (Slightly heavier VX-42 for Multicam) Yellow nylon pack cloth interior. Foam cushioned between fabrics. Great for an extra bottle, small stove, food, snacks, and many other things.