This compact frame bag easily swallows a couple of spare inner tubes, a CO2 pump, other tools and a couple of bananas. Velcro fastening may damage the paintwork of the bike, especially when road dust and sand come into play. We recommend protecting the frame with tape or contact plastic in these contact points. - Fastening with three Velcro straps - 3M reflectors - 150 denier ripstop polyamide made from recycled material - The fabric repels water - however, pack water-sensitive items in a separate waterproof bag - The product does not contain PFC compounds