NFPA certified Structural rubber Kevlar® lined and insulated FF boot. The last used to construct these boots has been designed for maximum comfort and accurate fit. In addition,the Enersole System includes a high-density polyurethane midsole that absorbs energy. The second layer of comfort an open cell OrthoLite® footbed that provides long lasting all-day comfort. The footbed is anti-microbial,anti-bacterial and fast drying.This boot features a durable rubber pull on system,a triple ridge steel shank for support,a stainless teel midsole,a steel toe that meets ASTM standards,a tibia protector for additional shin-guard protection,and a Kevlar®/Nomex® lining as well as 6.0 mm of open cell foam insulation.The molded rubber outsole is a one-piece K-lug design for maximum traction.This boot is NFPA 1971 certified.Additional InfoOrthoLite®,Safety,Steel Toe,Safety Toe,Rubber,Vulcanized Rubber,ASTM