Built for oilfield performance, RigTek™ has the durability and cushioning you need for long, hard days. The unique traction pattern is designed to grip on metal surfaces and advanced stability keeps you on your feet and performing your best. Features: -ATS® technology provides ergonomic support on uneven terrain -Removable Pro Performance insole for cushioning and shock absorption -Oil- and slip-resisting, direct attach PU sole for durability -90° heel -Goodyear welt construction -Lightly padded collar and tongue top -ASTM F2413 M/I/C EH rated