High-Quality, Breathable Evofiber MicrofiberStrong and Secure N-1 Ratcheting Buckle Closure (Replaceable)Offset Strap "D-Ring" at Mid-FootRubber Toe CapEaston EC70 Carbon Fiber midsoleMolded Rubber High Traction Lugged OutsoleMid-Foot Scuff GuardOutsole accommodates Steel Toe SpikesSuperNatural Fit Kit with Adjustable Arch SupportAegis Anti-Microbial Fiber treated footbedWeight: 345 grams (size 39)