The Tri Fly V from Pearl Izumi features a 1:1 Anatomic Tri Closure that eliminates hot spots and removes pressure from your instep. The fully lined mesh upper grants you barefoot comfort while the SELECT Insole provides excellent longitudinal and transverse arch support. Featuring a SELECT 1:1 Power Plate, the Tri Fly V boasts a SELECT grade nylon and composite fiber plate for lightweight stiffness and durability plus Direct-Vent technology for superb cooling and drainage. The concave shaping provides an ultra low 7.0 mm stack height with built in longitudinal arch support for optimal support, power, and efficiency. EVA foam and a rubber heel bumper grant stability and walking comfort. The Tri Fly V is SPD-SL and SPD compatible.