ESD Sandals and Clogs: Reliable Protection in ESD Areas with Birkenstock Comfort Working with sensitive high-frequency technology and electrical components, in particular, requires rigorous protective measures. When used in conjunction with professional ESD equipment at the workplace, these ESD models provide effective protection against dangerous electrical discharges. All ESD products have been tested by TÜV Rheinland in accordance with the requirements of EN ISO 61340. They meet the requirements for professional ESD applications ranging from 10^5 to 3.4 × 10^7 ohms (contact resistance). - ESD-compliant per EN 61340 - anatomically shaped cork-latex footbed - adjustable metal buckle - two shoe widths (regular/narrow) - Size: 38 - Color: blue - Footbed shape: regular