Carbon Fiber + 26-33 ARCHitecture – Orthotic-level control without the prescription; carbon fiber plates pair with our biomechanical design for locked-in support. Dialed Fit for Athletic & Everyday – Four arch heights and a simple 3-step sizing guide make it easy to get the right feel in running shoes, training shoes, and hiking boots. Built to Last a Million Miles – Carbon fiber supports with our Million-Mile Guarantee; replaceable top covers keep Dash fresh and cost-effective season after season. Performance Heritage – Designed by Mark Paigen (founder of Chaco). Performance arch support inserts for men & women. (Want cushioned all-day comfort? See Ramble. Need firm pain-relief focus? See Pace.) Boost speed, agility and performance. Regular inserts might be fine for most people, but you're not most people. You're an athlete. A different breed. Good enough, fast enough? That's never been enough for you. You're driven to perform at the highest level. Dash insoles are made for you. Wafer-thin, uber-light and ultra-firm, Dash's 100% carbon fiber inserts are engineered to biomechanically increase your performance and decrease your risk of injury. A perfect fit for your foot from your choice of four arch heights - low, medium, high and extra high. Your bike and ski boots are fitted to you. Your insoles should get the same treatment. Arch support that matches the contours of your foot is your secret weapon to beat your PR.