The EVA XLT foam midsole absorbs shocks in the heel to reduce impact.Foam collar with soft-touch neoprene fabric for added comfort.Interior: ISOTEX MEMBRANE provides ideal breathable waterproofing.Molded open foam TECFOAM sole for superior comfort and flexibility underfoot.Protection: Rubber mudguard that protects and supports the foot.Lacing system with attachment hook for a controlled fit.Sole: Vibram® rubber outsole for exceptional grip and durability.