I bought these boots in the spring and raced one season on them. The boot's are great but it seems like the leather that they used on the boots was to soft. My previous boots were Alpinestars tech 8's and compared to them, the SIDI's just haven't held up. After one season, the stitching on the boots have come loose and the leather on the toe of the boot has really gotten beat up. I have written to SIDI to see if this is covered under their warrenty. Untill I hear back, i'll let the picture speak for itself.