With an upper fabric that consists entirely of our Engineered Knit Technology, the Momentum provides stretch where you need it, supportwhere it matters and all-around exceptional breathability. We&&';;ve also added a microfiberliner to the front of the shoe to minimize stretch and maximizecomfort. The Momentum&&';;s durable rubber is unique in that it&&';;s molded-inspired by the way we forge our carabiners-versus cut from one sheet of rubber. This is our engineered solution to optimize our shoe&&';;s rubber andrands for weight, consistency and comfort. Built for all-day comfort on moderate routes, boulders or gym sessions, the Momentum features a softflex midsole for sensitivity and is the perfect entry level climbing shoe. Neutral, flat last for vertical climbing or all-day comfort Two Velcro straps for fit adjustability 4.3mm rubber is built for durability and molded for optimal consistency and performance Soft flex midsole for added sensitivit