MATERIAL: Performance mesh with flexible overlays for extra durability in key wear zones; Breathable mesh lining helps keep feet cool; Cushioned tongue and collar reduces irritation and discomfort around ankle area SUPPORT & DESIGN: Full length featherweight nylon plate for added stability; KEEN.CURVE design provides a constant curve from toe to heel for nonstop propulsion and performance rocker like feel TRACTION: Higher traction rubber helps give you the sure footing; Multi direction lugs provide superior grip on stable terrain; Backloaded cushioning takes pressure off the Achilles and heel area COMFORT: Removable footbed for long lasting comfort; High rebound shock absorbing underfoot cushioning system FIT & CARE TIPS: KEEN Contoured Fit curves with the natural shape of the foot for a more secure fit; Gently brush with a soft damp sponge to remove loose dirt; Treat stains right away with a gentle cleaner; Air dry away from heat