When the work gets tough the tough wear Avenger. This Nano Tech Comp Toe EH PR Waterproof Insulated 8'' Boot feature: full-grain crazy horse leather upper, super lightweight carbon nanofiber composite safety toe cap, removable dual density PU insole with extra cushioning for added comfort, oil- and slip-resistant nitrile rubber outsole for durability, flex-welt construction, waterproof membrane construction, Lenzi puncture resistant plate for enhanced puncture protection and flexibility, 600 grams Thinsulate insulation for maximum warmth, 90 degree heel for greater safety, meets or exceeds ASTM F2413-11 I/C, puncture resistant and electrical hazard ratings. Material: Leather, Rubber.