A comfortable alternative for the user to the “classical” overboot is a combination of cleanroom suitable shoes and textile gaiters. Walking safety is increased and at the same time the thermal sensation is reduced. Almost all loafers and safety shoes in slipper form can be used for this kind of construction. Also it might be possible to use some mules.
Standard design (gaiter):
adjustable ribbon with press buttons at the top
zipper connection between shoe and gaiter
zipper in the front