The 450 disposable overboot covers from 3M are disposable accessories designed to provide basic barrier protection to help protect footwear against light liquid splashes and hazardous dusts. Benefits Slip resistant sole to help improve user safety. Universal size with ties to provide a good fit for a wide range of users. Elastic at the calf to provide closure around the top of the footwear for protection against contaminants Laminated microporous material provides resistance against light liquid splashes and hazardous dust including nuclear particles Universally designed to be used with