The Castelli Diluvio Shoe Cover 16 is an all new design for winter 2014. The 16 is an extra tall version of the classic and much loved standard Diluvio but with a 16 cm cuff and a fully waterproof zipper backed with reflective trim. The 3mm Neoprene fabric will stand up to the wettest and coldest winter riding conditions. All seams are thermo-sealed for complete water protection, with cleat and heel areas open for stability while walking. The stretchy material easily pulls over your shoes If you regularly ride in the cold and wet these are the only solution, remember nothing here will keep your feet 100% dry but the Diluvio 16 will ensure that even when the rain does penetrate your feet will still remain toasty.