The Guardian: \"Totally waterproof and reflective, this pack means your stuff arrives dry, even if you don’t!\" The Independent: As featured in the \'Top Ten Cycling Backpack\'s\' Bikes etc: \'This will keep your kit dry however bad conditions get.\' Roll-top, 100% Waterproof backpack - IPX8 class waterproofing Size (loaded and top rolled down): Height: 51cm, Width: 30cm, Depth: 20cm Capacity: 28 litres High frequency welded construction to keep out all water and dirt Roll-top and clip-closure – fast access and easy loading Inside zipped pocket measuring 22 x 29cm for your phone, wallet, keys, tablet REFLECT360 – Retro reflective material situated on the front straps / side / back to give 360 degree night time reflectivity High visibility PVC for day time visibility Adjustable and quick release chest and waist straps for extra stability Top carry handle Made from highly durable 500D PVC material IPX8 Waterproofing (fully submersible when top closure is rolled 3 times)