Built to be seen the speed hump offers superb night time visibility constructed from fully waterproof fabric with taped seams the speed hump keeps the contents of your bag dry the 100 nikalite silver reflective fabric is made using glass bead technology to light you up like a christmas tree to passing motorists the contrast black chevrons and shocking orange base offer great contrast for daytime visibility the packaging doubles up as a reusable waterproof sleeve that clips into the