The soft midsole and solid PUR outsole of the quatro pro can guarantee exceptional comfort. The uvex quatro pro safety shoes feature particularly deep non-slip tread, an injection-moulded scuffcap and support in the arch area. · · · Protection class: S3 SRC · · Non-slip outsole · · Penetration-resistant steel midsole · · Oil and petrol resistant · · Water-resistant upper · · Steel toe cap · · Stabilising heel cap · · Material-protecting scuffcap · · Not for working with electrical live parts · · Suitable for orthopaedic adjustments and insoles