The Momentum W's by Black Diamond in the women's version with velcro offers a soft knitted upper, a moisture-wicking microfiber lining in the front and a foot climate-friendly footbed made of hemp. The Momentum's stiff and durable rubber is molded from a rubber layer. For comfort on long days, bouldering or indoor climbing, the shoe has a soft flex zone in the middle for additional sensitivity, making it the perfect shoe for beginners to climbing.