Original hump wproof rsack cover the original hump keeps your backpack contents dry and ensures youre seen by passing motorists constructed from fully waterproof fabric with taped seams the original hump keeps the contents of your bag dry the day glo two tone fabrics feature contrast chevron prints and reflective stripes to give you superb daytime and night time visibility the packaging doubles up as a reusable waterproof sleeve that clips into the inside of the cover elasticised binding ens