The Lake MX238 Gravel Shoe provides gravel and mixed-terrain cyclists with the best of both worlds: the comfort and performance of a road shoe combined with the walkability of a mountain bike shoe. Remarkably, it achieves this without sacrificing on weight or adding unnecessary bulk.  Featuring a larger toe box & tighter heel than the Comfort last and with slightly more overall volume than the Sport last. Exceptionally secure for hard riding/racing with enough room in the toe box to prevent binding when running up inclines or negotiating a hike-a-bike section.  Designed for performance riding & racing. BOA Fit System Li2 dials. The Li2 dial is the most advanced platform in cycling, offering a precise, micro-adjustable fit in both directions and designed to resist abrasion Materials Outsole: Lake Competition 100% Carbon Fiber Sole with Mountain Race X real rubber sole Upper: Clarino Microfiber or Ecco Fullgrain Suede Leather with mesh and Helcor abrasion resistant panels