Pearl Izumi Pro Leader Iii Cycling Shoe 100% Synthetic and Textile Imported Rubber sole Spring/summer 2022 Zonal bi-directional closure wraps the foot for a semi-custom fit and secure foot retention, double boa ip1 reels allow 1mm micro-adjustability and pop up for full release 1:1 integrated carbon power plate delivers feather-light stiffness (stiffness rating of 13) 1:1 insole system allows independent left and right arch and forefoot varus canting adjustability for optimal pedaling mechanics, replaceable heel bumper 3-bolt road cleat. Seamless .9mm Second Skin Upper: the thinnest upper on the market, it adapts comfortably to your unique foot shape to eliminate hot spots and offers superior breathability