The latest evolution of the Pearl Izumi Tri Fly V Carbon Triathlon Shoes is built around cutting-edge looks and construction, optimized energy output of the P.R.O. 1:1 Power Plate and lightning fast performance of the 1:1 Anatomic Tri Closure. Grade Uni-Directional Carbon with ultra-low 7.0mm stack height is lightweight, vibration-damping and super-stiff. Fully lined mesh upper promotes ventilation, so you can ride sock-free and not feel hot or clammy. 1:1 Anatomic Tri Closure with notched Velcro strap helps to shorten your time in the transition area.