Here's the instant way to make cycling more comfortable- simply fit the new geltech cover on top of your existing saddle. Beneath the Neoprene /Lycra covering there is a contoured gel sac, approximately 3/8" thick, that configures to the shape of your bottom! Warm in winter and cool in summer, Geltech is far cheaper than replacing the whole saddle. Ideal for llmost any racing, touring or mountain bike.