Black boot upper is made from Polyurethane (PU)-coated leather with a high suede leather medial panel for superior grip, Brown boot upper is full-grain oiled leather, Front and rear boot bellows make with lightweight microfiber for increased durability and abrasion resistance, Rear reflective insert for improved visibility, Extended PU-coated front leather gaiter helps keep out water and dirt, Rear gaiter has rubber insert for flexibility and comfort, Thermoplastic Polyurethane (TPU) shin and calf plate offer support and resistance to impacts, Bio-mechanical lateral flexi-blade boot system provides excellent front and rear movement while offering support and protection to the ankle, TPU shift pad is made with a technical texture for added grip; foam padding on bottom of the shift pad provides better comfort, Wide entry aperture for convenience with hook-and-loop upper closure flap that allows a wide range of adjustment for an excellent fit, TPU double-density ankle protector on medial side for protection, Boot closure system includes two polymer ratchet buckles with memory feature and quick-release locking system that is self-aligning for easy, precise closure, All boot buckles are replaceable, Soft foam surrounds the ankles and collar for comfort and shock-absorbing performance, Drystar? membrane layer between boot upper lining, Toe box and heel counter reinforcements layered under the boot upper, Replaceable anatomical Ethylene-Vinyl Acetate (EVA) footbed with Lycra? lining on top, Polypropylene (PP) insole with steel shank is co-injected for excellent feel and safety, Vulcanized rubber compound for optimal comfort and grip