The Altura Vortex 2 Waterproof Top Tube Pack is easy to get on and off and a great way to store fuel and valuables. Designed to adjust to different frame configurations, and easy to get on and off, this fully waterproof Altura Vortex Waterproof Top Tube is the ideal way to carry smaller quick access gear or fuel on the frame when bike packing or commuting. Positioned toward the front stem or the seatpost, the GETBLOCK™ waterproof zip provides protection against the elements, keeping essentials dry. Altura Vortex 2 Waterproof Top Tube Pack Features Fully waterproof to level IPX6 Lightweight Welded seam construction 100% waterproof zip closure Adjustable attachment system Internal sleeves for organisation Structured inner support Reflective detail