Fizik Vento Powerstrap Aeroweave Shoes Fast, Cool, Unstoppable. The Fizik Vento Powerstrap Aeroweave is a race-ready road cycling shoe designed for performance and breathability with a unique style. The Vento Powerstrap Aeroweave features the second-generation Aeroweave upper, a woven nylon and thermoplastic polymer blend that creates incredible ventilation and strength, with even less weight than previous versions. This advanced upper also uses the Powerstrap closure system. This unique dual-strap closure is a ribbon that wraps around the foot, giving riders a customizable fit and adjustable compression at the instep and midfoot. Built with the R3 carbon outsole, the Vento Powerstrap Aeroweave Shoe offers a stiff, race-ready, responsive pedaling platform for maximum power transfer, while vented channels ensure cooling airflow. Perfect for aggressive riding positions, the Vento Powerstrap is a serious contender with a style all its own. Features R3 carbon outsole uses an updated carbon fiber layup for reduced weight, while retaining the top-level stiffness for unrivaled power transfer Vento Powerstrap closure is a dual-strap closure that wraps around the foot for a secure fit, with independently adjustable forefoot and midfoot compression Aeroweave upper is lighter and more breathable than ever, featuring a woven nylon design with interwoven thermoplastic polymers, for more airflow and strength with less weight Modern recessed cleat positioning for an improved bike fit, and to optimize pedaling efficiency SPECIFICATIONSClosure type Vento Powerstrap System Cleat Compatibility3-Bolt, Road Intended Use Road, Road Race Sizing EUUS364 1/4375 1/437. 55 1/238638. 56 1/4396 3/439. 57407 1/240. 58418 1/441. 58 3/442942. 5942. 59 1/2439 3/443. 510 1/443. 510 1/44410 3/444. 5114511 1/245. 5114612 1/446. 512 1/24713 | Fi'zi:k | Vento Powerstrap Aeroweave Shoes Men's | Size 44 In White | Nylon