Closure system:Dual zone BOA® LI2 Fit System.Upper:Textile.Futter und Decksohle:Synthetisches Textil.Outsole:Rubber.Pedal system:SPD Pedal System.Weight (per shoe, Size 42,5):Approx.:331 g.Sizes:Women´s 37 - 48, including half-sizes from 42.5 - 45.5.-Giro Gritter.The ultra-lightweight Gritter™ excels on endless gravel roads, technical XCO courses, and everything in between.Optimized for low weight without sacrificing comfort, a long-fiber carbon composite plate drives optimized pedaling dynamics.The Syncwire™ upper is a laminate of breathable ripstop fabric and durable film that conforms to the riders foot and keeps you cool but protected from the elements.Customize your fit with the Dual Zone BOA® Fit System with LI2 machined aluminum dials and our legendary Supernatural ™ insoles, which include three height options of arch supports.And, when you have to hike-a-bike, be confident with our durable Sensor™ rubber, co-molded to that carbon composite core for a lightweight and permanent bond.Drop bars or flat bars, all-day explorations or 60 minute sufferfests, Gritter is the choice for low-weight, long-lasting, high performance shoes.UPPER:One-piece synchwire upper with breathable ripstop mesh.aluminum dials.Stainless steel laces.Soft lace guides.Rockprint® toe and heel protection.FOOTBED:Supernatural fit kit with adjustable arch support.XT2® Anti-microbial fiber top sheet.OUTSOLE:Co-molded carbon composite plate and sensor rubber tread.TPU toe lug secured with hex head cleat screws.CLEAT COMPATIBILITY:2-bolt Mountain.WEIGHT:331 grams (size 42.5).SIZING:37 - 48, including half-sizes from 42.5 - 45.5.