Butora Acro Wide Fit Climbing Shoe - Men's The Acro is an aggressively down-cambered shoe designed for steep sport climbing and bouldering. The combination of soft synthetic and natural leather in the upper construction allows for even greater performance and a surprisingly comfortable fit. The high-tensioned heel rand brings all the power to the front toe for superior edging. Butora's signature triple fork hook and loop strap provides the convenience of a slipper with the extra security and custom fit of a lace-up shoe. The large sticky rubber toe patch allows for secure toe hooking in even the most technical situations.