Pearl Izumi's Tri Fly IV Carbon Shoes have the features you need to ride your best, whether it's race day or training day. They boast light, breathable, lined mesh uppers that feel great on bare feet. Their anatomic carbon soles with Pearl's P.R.O. 1:1 Power Plate and Direct-Vent technology provide excellent pedaling efficiency, as well as water drainage and breathability to keep you dry and comfortable. The Tri Fly IVs also come complete with handy details designed to get you through transitions in a flash, such as a 1:1 Anatomic Tri Closure, heel loops, and rubber heel and toe bumpers for traction while walking.