Sitting at the pinnacle of Pearl Izumi's mountain bike shoe line are the X-Project 1.0s, stellar shoes perfect for trail riding and racing and cyclocross. You'll love the supportive and durable uppers with excellent breathability and ventilation, the EVA foam heel pads for cushioning, and seamless toe boxes that flex just right. Pearl incorporated Boa's lacing system to deliver a custom fit with lightning-fast adjustability. And, for top performance, there are tapered unidirectional carbon plates inside the soles that maximize your pedaling power while flexing enough for comfortable walking and running, too. You also get grippy rubber treads over hollow lugs for exceptional traction with no weight penalty. And, Pearl's 1:1 Insole System with Total Tune Performance Inserts for added efficiency and comfort.