Grey cow suede leather and nylon material, soft padded shaft Lining: Especially breathable sandwich textile lining Tongue: Closed, padded Lacing: Flat laces, grey Insock Soft damping Baak ESD Softstep insole, breathable with very high moisture absorption and release, antibacterial, fungicidal (article 4661) Outsole EVA/nitrile sole with flex zone in the ball area EVA midsole with high energy absorption capacity Nitrile outsole: non-slip, non-marking, integrated H-coupling element for a foot-friendly bending for a healthy standing and walking Toecap Composite flex cap with extension at the outer side to support a foot-friendly bending movement Anti-penetration Non-metallic, penetration resistant, flexible insole Plus Patented Baak® go&relax system consisting of flex zone and flex cap for a foot-friendly bending. Scientifically proven positive effects for joints and spine. Weight Approx 520 gr. per piece (size 42) Designation According to EN ISO 20345:2011 S1P SRC ESD