FSI Avenger Men's Hammer 8" Carbon Toe Waterproof Puncture Resistant Slip Resistant Leather Work Boots FEATURES AND BENEFITS: - Full-Grain Crazy Horse Leather Upper - Super Lightweight Carbon Nanofiber Composite Toe Cap - Removable Perspiration-Absorbing Dual Density PU Insole - Abrasion Resistant Bumper Toe for Strength - Lenzi Puncture Resistant Plate for Enhanced Puncture Protection and Flexibility - Waterproof Membrane Construction - No Exposed Metal to Meet Scratch Resistant Workplace Requirement - Flex-Welt Construction - Oil and Slip-Resistant Nitrile Rubber Outsole for Durability - 90° Heel with Maximum Stability for Greater Safety - Meets or Exceeds ASTM F2413-11 I/C, Puncture Resistant & EH Ratings.