Suit description

From the late 1800s and throughout most of the 20th century, most Standard Dresses consisted of a solid sheet of rubber between layers of tanned twill. Their thick vulcanized rubber collar is clamped to the corselet making the joint waterproof. The inner collar (bib) was made of the same material as the dress and pull up inside the corselet and around the diver's neck. The wrist cuffs are also made of vulcanized rubber. The twill was available as heavy, medium, and light with the heavy working best against rough surfaces like barnacles and rocks. Three sizes were available; however, there was only one size corselet. Different types of dress are defined by the clamping of the outer collar clamps to the corselet. The legs are laced to prevent gas from getting trapped in the legs and dragging the diver to the surface. In normal UK commercial standard dress diving activities, the dress often did not have the lace up option.
Corselet

This is an oval brass collar-piece resting on the top middle parts of the chest and back, for the helmet to be screwed to.