Fully lined with padded comfort collar and tongue, for greater worker comfort. Heavy duty Kevlar stitching for extra reinforcement and longer life. NANOlite and COMFORTcushion technology enhance comfort and reduce leg fatigue. NATUREform steel toe cap has a wider profile and latex cushion liner to ensure toes are comfortable and not in direct contact with the cap. PORON® XRD™ metatarsal guard is soft and flexible for outstanding comfort, but hardens upon impact for top-rated protection. Qflex Zero, non-metallic puncture protection for underfoot safety.