Stainless steel laced Boa® closure system with easy closure and quick click-opening. Uppers of durable fabric. Composite toe cap. Mid-sole of special textile material. Stabilising multi-function shank with integrated absorbing cushioning. Non-marking sole no scuff marks. Two-component sole of PU/TPU. The sole is oil and petrol resistant and resistant to certain chemicals. Suitable for working on the knees. PU toe reinforcement. Durable TPU on the sides. 3.5mm profile depth. Ladder grip. Shock-absorbing insoles are removable, durable and ergonomic. Absorbs and removes moisture. Breathable Sympatex® membrane. Heel cap. ESD Approved to DIN EN 61340-4-3: 2002 + DIN EN 61340-5-1: 2008. Certified to EN ISO 20345 2011, safety class S3 SRC.