A waterproof roll top backpack which is ideal for the cycling commuter   Commuting made easy. Waterproof, durable and highly-visible, the Thunderstorm City backpack will serve you well. It might weigh only 600g, but its roll-top closure gives you flexible carrying capacity up to an impressive 30 litres.   The polyester ripstop material with TPU coating is certified waterproof to level IPX6. Combined with sealed seams, you can ride to work with confidence on the wettest days of the year. While the draft venting back system, ensures you stay cool on the hot summer days as well.   Internally, the padded laptop sleeve will protect your laptop from bumps and knocks. Plus, it's easy to organise your valuables, with a zipped pocket and key loop. Externally, reflective details and light attachment points will help you stay visible on the road. Available in black or hi-viz yellow for added visibility. Altura Thunderstorm City 30 Backpack Features Fully waterproof to level IPX6 Roll top closure Padded laptop sleeve (removable) fits 13” laptop Internal zipped pocket and key loop Light attachment points Chest and waist strap Draft Venting back system Grab handle 360° reflective details Weight: 600g Dimensions: 47 x 27 x 15 cm