The Specialized S-Works Exos Carbon Road Cycling Shoes in Rocket Red weigh in at just 150 grams, making them the lightest cycling shoes to ever come with a Boa dial. & not only are they ridiculously light, but they still have all the features that are synonymous with the S-Works label. They’ll still perform at the World Tour level, just ridiculously light. To get the weight down to the 150-gram mark without sacrificing power transfer the carbon outsole was developed using an advanced form of Finite Element Analysis & pressure mapping to pull out material where it wasn’t needed. This allowed Specialized to keep crazy-high stiffness numbers, too. For the uppers, Specialized completely removed the heel counter. & with a little help from the space-grade Dyneema mesh & some Cubic Tec reinforcement, the heel moulds to the back of your foot, so hardly a watt is wasted. Lastly, Specialized developed a new Warp Sleeve vamp that lets them get rid of the toe box, & this further cuts down the weight & increases the comfort. None of the weight saving sacrifices coveted Body Geometry features, like the Longitudinal Arch, Varus Wedge, & Metatarsal Button. Each one of these features have been ergonomically designed & scientifically tested to not only boost power, but to also increase efficiency & to reduce the risk of injury. Features Body Geometry sole & footbed are ergonomically designed & scientifically tested to boost power, increase efficiency, & reduce the chance of injury by optimizing hip, knee, & foot alignment. Our lightest FACT Powerline™ carbon plate maximizes power transfer: Stiffness Index 13.0 A revolutionary Dyneema® Mesh allows us to achieve weight without sacrificing hold for the ultimate connection & comfort. BOA® IP1 Fit System for on-the-fly micro-adjustment, backed by the Boa guarantee. Titanium alloy cleat nuts can rotate to position pedal/cleats 5mm rearward. Non-slip, replaceable heel tread with internally recessed screws for security. Form Fit last with a Warp Sleeve vamp for the ultimate in connectivity, comfort, & speed. Three-bolt cleat pattern fits all major road pedals. Approximate weight: 140g (1/2 pair, Size 42)