Ariat Men's Sierra Square Steel Toe 10in Work Boots - Extremely durable, cushioned, and heat-resistant, the Sierra collection keeps feet comfortable and supportive in tough conditions. It's ideal for harsh outdoor jobs, high heat environments or intense construction work. ATS technology provides ergonomic support on uneven terrain Removable All Day Cushioning insole Oil- and slip-resisting Duratread sole for maximum wear resistance, passes hot contact test at 300degC/572degF 90deg heel Resolable Goodyear welt construction for durability Six-row stitch pattern ASTM F2413 M/I/C EH rated Style: 10010134