The Haix Safety 40 MID is an S3 safety shoe that is optimally equipped for construction sites, even in the worst weather conditions. These safety shoes are permanently waterproof, very lightweight, and flexible, providing high comfort. The shoes are true all-rounders and can be worn both indoors and outdoors; you can always rely on these Haix shoes. Orthopedically adjustable according to DGUV 112-191. Maximum wearing comfort and perfect fit. The high safety shoes are designed for the best possible comfort. This is achieved through the lightweight materials used in the shoes. The surface is made of microfiber and robust textile, which are highly breathable. The open-pore material allows for good air circulation and ensures balanced air exchange. Weight has also been saved in the toe protection cap.