With an upper fabric that consists entirely of our Engineered Knit Technology, the Momentum provides stretch where you need it, support where it matters and all-around exceptional breathability. Weve also added a micro-fiber liner to the front of the shoe to minimize stretch and maximize comfort. The Momentums durable rubber is unique in that its molded inspired by the way we forge our carabinersversus cut from one sheet of rubber. This is our engineered solution to optimize our shoes rubber and rands for weight, consistency and comfort. Built for all-day comfort on moderate routes, boulders or gym sessions, the Momentum features a soft flex midsole for sensitivity and is the perfect entry level climbing shoe.