The product features integrated insulation called slimTECHNOLOGY

as stated in the manufacturer's description

Red color for visual identification (model 410LTRED)

The blade material is stated as chrome-vanadium-molybdenum steel

Manufacturer's part number: 9072

Sikkerhedssko Roller XL S1P str. 39, ESD Sievi Air Size:37 The product features integrated insulation. Sandals with penetration resistant steel midsoles and SieviAir soles for increased comfort and effective ventilation. The 3D dry dry lining increases breathability by transferring moisture from the feet. The non slip and flexible polyurethane sole is resistant to oil and a range of chemicals. ESD.