214163PAR37 Features: For grip and grabbing performance on tight lips, edges and hooks, these shoes employ a rubber rail on the back of the heel and rubber on the forefoot Sustain a firm fit for enhanced durability as the suede and Lorica synthetic fabric minimizes stretching For the best grip performance, these rock shoes are outfitted with 4 millimeters of Vibram XS Grip rubber on the sole Easy on and off, and a tight, secure fit made possible by the 3 power strap closure system that also eliminates laces rubbing and chafing your feet Specifications: Weight per pair: 87 ounces Upper: suede to synthetic Lined: no Sole: Vibram rubber