Quick pull lacing harness that delivers a snug precise fit Durable FriXion RS rubber compound for great grip and durability Lined tongue for moisture management Fit Tip - Designed with rounded forefoot and higher volume to comfortably fit more climbers; Rock climbing shoes are designed to fit differently than other footwear; Be sure to reference the La Sportiva size chart in the product images for more accurate sizing; The fit should be tight, but not painful, and without pressure points With the Tarantulace, the best-selling climbing shoe in the US, you can climb harder and longer while suffering less. Thanks to its unlined leather upper, asymmetric shape and roomier toebox. The aggressive rubber heel rand and the FriXion RS rubber is sticky, yet hard wearing, offering increased durability and providing a powerful edging platform. It’s the ideal shoe for both outdoor and gym climbers that need a one quiver shoe to do it all. The saying goes “pick twoin. but with the Tarantulace you get the winning combination: versatility, durability, comfort, and affordability.