100% waterproof premium full grain leather; Q-Flex® non-metallic penetration protection insole; new and improved SAFETYcell® integrated TPU heel and toe and coated leather shell for enhanced abrasion and cut resistance; flush, integrated zip contours to the boot, providing full flexibility and support and allows a custom fit to your leg shape; new Y-Guard TPU ankle protector on both sides of the boot provides impact resistance to the ankle and lower leg, and superior torsional support; S3 rating for waterproof and penetration resistance; reflective panel above the heel provides additional safety for increased visibility in low lighting situations; heavy duty Kevlar® stitching across all critical wear seams; increased padding through tongue and leg for increased support and stability; and internal PORON® XRD metatarsal guard.