Altura vortex 2 waterproof top tube packa top tube pack that's ideal for securely storing your bike tools, spares and all your quick grab daily essentials, the vortex 2 is perfect for commuters and adventure rides. It comes with a completely waterproof construction including welded seams and a 100% waterproof zip closure. To keep your pack organised the interior has an internal sleeve for organisation and structured inner support. There's also an adjustable attachment design that works with most bike frames.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 capacity 1l dimensions 25x11x6cm weight 130gbuy altura accessories from chain reaction cycles, the world's largest online bike store.