Dynamic Sensor Grip soleVERSATILE PERFOMER: a perfect combination of comfort, breathability, and aggressive construction to go from trail to alpine and backUPPER: breathable mesh upper offers cooling. Strategic welded overlays protect from debris. Padded tongue. Lace garage at top of the asymmetric tongue.SOLE: Dynamic Sensor Sole outsole rubber with 6mm tread gives high levels of grip and durability on all surfaces. Dual Density Sensor3 thermoformed EVA midsole & footbed for increased comfort, power, and control. Optimally placed internal Torsion Bar gives lateral stability over difficult terrain.FEATURES: Traditional lacing system. Gaiter Attachment Point. 23mm heel stack height, 6mm Heel to Toe drop.FIT: Overall Fit: Runs 1/2 Size Small. Heel: Narrow with a Narrow Ankle. Midfoot: Narrow to Medium. Toebox: Narrow to Medium. 275 g / 9.7 oz per shoe.