The dexshell coolvent sock boasts the latest waterproof and thermal technologies built with a durable nylon based outer sock porelle waterproof membrane mid layer and coolmax inner sock these dexshell socks will ensure you stay feeling dry and fresh throughout a day in the saddle the coolvent is a mid calf length sock which is longer than the coolvent lite for extra protection higher up you calf so if your after a shorter sock go for the lite the dexshell coolvent sock is a superbly versat