The Fi'zi:k R5B Uomo Road Shoes are a newly redesigned update of the Fi'zi:k's previous well-reviewed state-of-the-art model. These understated but sleek shoes are artfully constructed to provide a secure, customized fit that maximizes pedaling efficiency. Constructed with laser-perforated Microtex and a reflective heel cup, a carbon-reinforced nylon outsole and equipped with the award-winning Boa IP1 closure system these shoes will fit like a glove while enabling you to maximize your effort to power forward. The combination of materials allows these shoes to be so incredibly light you'll forget you're wearing them. The Boa IP1 closure system uses system of steel lace, nylon guides and a mechanical reel to improve upon the performance of every other available closure system and delivers a glove-like, precise fit with uniform closure that creates zero pressure points. Rather than fuss with buckles and loops, the Boa closure system allows you to achieve a perfect fit with the turn of a knob. Carbon reinforced nylon outsole Fi'zi:k Cycling Insole ergonomically padded with with EVA foam to reduce pressure at contact areas Perforated Microtex upper with reflective heel cup Fi'zi:k's all-black version of the R5B Uomo is fitted with additional reflective side panels for enhanced visibility Boa IP1 closure system allows you to secure your shoes quickly