Perfect for carrying essentials, the 0.5L capacity ADV top tube bag fastens to the top tube and steering column with adjustable buckle straps. Waterproof zippered top opening for easy access to the storage compartment. - Fastens to steerer column and top tube - Opens/closes with a zipper on top - PU coated splash resistant 600 denier Nylon - Water-resistant polyurethane coating on zipper - Fits up to 160mm steerer column/top tube circumference - Capacity: 30.5 cu in (.5L) - Dimension: 18cm (L) x 4cm (W) x 8.5cm (H) - Weight: 100g