Skechers Ulmus S3 black composite toe/midsole work safety trainers shoesSafety Category : S3 Marking Code : SRC ESD Features Midsole Antistatic Water Resistant Toe Protection Heel energy absorption Electro Static Dissipative Composite cap Composite midsole Slip resistant Description The safety you can rely on and athletic styling combine in Skechers Work: Ulmus. This puncture and slip resistant design features a mesh and synthetic upper in a lace up front, cushioned Air Cooled Memory Foam insole and a carbon safety toe.