grisport safety laars 72401c 33259 s3 kn zwart elten the boot features a comfortable Size workwear:60 the boot features a comfortable Klima Komfort® insole and a cushioning system that reduces foot fatigue during long hours of use Outsole: XR sole technology with a rugged tread for slip resistance and stability offering durability and water resistance PU Nitrile sole: Heat resistant up to 300°C and slip resistant