SKECHERS work shoes for maximum comfort and protection with the shoe: Synergy – Omat Alloy Toe. Soft smooth knit fabric and smooth synthetic upper in a work shoe. Memory Foam insole. Safety toe cap in aluminum alloy. Standard: EN ISO 20345: 2011, BS EN 61340-5-1: 2016-BN IEC 61340-4-3: 2018. Category: S1 P SRC + ESD. The non-slip sole design is also oil resistant. Black colour.