These are used to prevent the deceased from leaking into the casket during a viewing. They are used when there’s been some kind of trauma to the body due to organ donations, injuries from an accident, burns, or skin slippages from decomposition, or in some cases Edema, (swelling that occurs when too much fluid becomes trapped in the tissues of the body)
There are quite a few different items of plastic undergarments that are used on different part of the body depending on the the condition of the deceased.
Here’s just a few.
The Coverall, they look like a large pair of shorts that cover your whole torso and chest area and they are used for abdominal and lower leakage.
The Capri, which is like a pair of high waisted trousers but with no feet holes so any leakage from the waist down, collects into the foot area.
The Unionall, A full body covering, looks like a work overall. These are used if the body has a lot of decomposition or has been burned or has had most of their organs donated, including the skin.
The plastic pants, They look like a pair of shorts and are used for lower area leakage.
The sleeves which are used to catch leakage from IV wounds cuts and skin slippage.