Lace up in the Irish Setter Men's Mesabi 8 in Safety Toe Logger Work Boots and tackle the toughest jobs. ASTM-certified steel toes and protection against electrical hazards means these boots are built for tough work sites, while the aggressive Stars and Bars Logger soles and UltraDry waterproofing mean they're as rugged as they are safe. HR0 soles will withstand high heat, with a minimum melting temperature of at least 475 degrees F.