Awesome shoes! Some of the technical characteristics: Women's-specific contoured fit New SL2 FACT carbon sole with A-Symmetric engineered design and TorsionBox technology is optimized to create our lightest and stiff sole: 13.0 stiffness index New lightweight cartridge replaceable Boa S2 Snap allows on-the-fly adjustments for a dynamic fit with stainless steel braided lace; L/R shoe forward rotating to tighten 2 independent BOA dials optimize closure in each zone: Top dial locks the ankle and heel down, while mid-foot dial snugs the arch and forefoot Minimalist designed Thermobonded upper with adaptive fit is lightweight, durable and brings a superior supple fit Redesigned Boa lace guides are open-backed for easy on/off Replaceable heel tread with internally recessed screws for security 3-bolt cleat pattern fits Shimano SPD-SL, Look, Time, and Speedplay Approximate weight: 190g (1/2 pair #39) Sold for US$ 359.99 new. Thank you!