Designed with gel inserts and a patented body geometry design the toup expert gel adds an extra layer of comfort to the toup39s lightweight performance oriented design adaptive edge technology allows the saddle39s edge to conform to the body and a choice of three sizes gives a dialed fitpatented body geometry design is lab tested to assure blood flow to sensitive arteriesstiff carbon reinforced shell with flexible adaptive edge technologylightweight and supportive pu foam with gel in