Rubber boot with screw studs in sole has holes for stud shaft in outer sole and has fastening nuts embedded in plastics middle sole and has inner sole without holes

摘要

The boot has a reinforced hole (1) high up in the side to act as a handle to assist in pulling on the boot. There is a flat inner sole (2) inside the boot on top of a plastics middle sole (3) containing nuts (4) and the threaded shafts of the studs. The outer sole is monolithically molded with the rubber upper of the boot and has holes for the shafts of the studs (5). The plain studs have wide flanges sealing against the underside of the rubber sole. The sole may be at least 15 mm thick.