The P.R.O. MTB II is your choice for ultra-light performance, power and comfort in an off-road package. P.R.O. Grade Uni-Directional Carbon for ultra-light stiffness Direct-Vent technology for cooling and drainage Concave shaped sole plate for enhanced stiffness and anatomic support Built in longitudinal arch support for optimal support, power, and efficiency Anatomic buckle closure follows the natural shape of the foot to eliminate hot spots and remove pressure from your instep Adjustable instep strap with adjustable buckle mounting plate delivers ultimate fit and flexibility Heel cup has synthetic leather lining and an external carbon power band for maximum heel hold and power transfer Internal achilles grip pads in heel cup lock in your heel for maximum comfort and power P.R.O. insole with dual density EVA for optimal longitudinal and transverse arch support Pearl Izumi one piece upper with laser technology provides a second skin fit, minimal weight and maximum comfort Molded TPUToe Cap and high traction Rubthane lug tips deliver off-road durability and traction Weight: 390 grams (size 43)