Selle smp stratos lady saddlethe stratos model is the ideal seat for both intensive training and free time cycling it uses the structure of the composit model joined with average padding it is covered in real leather in the black versions and microfiber in the colored versions it has excellent all around features and is particularly suited for the average pelvis the stratos model has foamed elastomer padding where the ischial tuberosities and rear rest the patented features by selle smp s