The Pearl Izumi Tri Fly IV shoes are fantastic. The large rear loop are excellent for attaching the shoe to the bike frame with rubber bands. The main large velcro strap make it easy to tighten and adjust the shoe while riding the bike. This model also has a smaller velcro strap in the toe area, which helps fine-tune the fit. As expected the mesh uppers provide great ventilation, allowing your feet to dry quickly and not get sweaty.

The Tri Fly4 are super comfortable while wearing them sock-less. I have not had any issues with blisters or any foot discomfort.