Sitting proudly at the top of Pearl Izumi's X Project line, the X Project 1. 0 Men's Shoe features an efficient carbon sole and a streamlined fit, recommending it as a lightweight, responsive choice for 'cross or XC racers. If you're looking for a shoe that's tough enough for slick run ups and rock laced sections of trail but will still provide you with the power transfer you need when you're mashing in a final sprint, we'd recommend covering your feet with the X Project 1. 0. One of the most notable features of the X Project 1. 0 is its carbon plate sole, which Pearl Izumi designed with a tapered shape and some flex to adapt it to hiking and running while still allowing you to benefit from the rigidity and lightness of carbon when you're pedaling. The sole is reinforced by an outsole featuring molded rubber tips on hollow TPU lugs to lend the shoe enough traction to dig through mud, rock, sand, and any other challenging conditions you end up running your bike through during a race. The EVA foam heel takes a cue from cushioned running industry technology, helping to lessen the impact on your joints if you end up having to hike or run repeatedly throughout a long ride or race. To set the 1. 0 apart from the rest of the X Project line, Pearl Izumi shapes the upper from its . 9mm Second Skin synthetic. According to Pearl, is the thinnest upper available on the market. Its flexible fit conforms to a variety of foot shapes, making hot spots and pressure points unlikely with its use of heat bonded, rather than stitched, seaming. Second Skin also allows for ample air transfer, helping to pull moisture from your feet and socks. The dual BOA dials give you extensive adjustability pre ride or from the saddle, allowing you to achieve a secure fit that helps prevent numb feet in the middle of a trail.