// Proprietary Kling-On Rock sticky rubber outsole delivers lightweight, flexible performance with solid grip on dry and wet rock. Compatible with Xtra-Bite screwin cleats & other 1/2 inch cleat systems (sold separately). // Boa M4 Fit System with Sequence lacing configuation for quick on/off and custom fit. // Exo-Tectechnology provides 360 degrees of molded abrasion-resitanct protection in a flexible, hyper-light pagkage. // Hydrophobic materials = faster dry times which lessen the chance of spreading invasive species. // A unique stretch wrap cuff offers supreme comfort and agile flexiblity. LIGHT AS A FEATHER, TOUGH AS NAILS.