Birzman's Packman Top Tube Pack is lightweight, durable and perfect for smaller items such as tools and nutritional items such as bars and gels.0.8L capacity for carrying smaller itemsSecurely straps to top tube with easy to use Velcro strapsWater and abrasion resistant 420D & 600D high-density fabric26 x 10 x 16cm dimensionsUsing adjustable Velcro straps to attach to the top tube, the Top Tube Pack will stay steady and stable as you ride and fits to most frames. The Packman Top Tube Pack is constructed from a durable and water-repellent 420D & 600D high-density fabric and is designed to withstand the elements as it keeps your gear dry. The Packman Top Tube Pack is also resistant to abrasions from ground debris and spray, so it will keep on looking good while keeping the contents safe and dry.