Bariatric Foam is a higher density open-cell foam. It is used to support larger/heavier patients for positioning. It is used to support larger/heavier patients for positioning. Stealth-Core sponges have been designed to reshape the industry-literally! The unique angles incorporated into every sponge offers artifact-free imaging and increased stability. High Density open cell, polyurethane foam is specifically designed to provide extra firm support for bariatric and athletic patient positioning. This product is radiolucent. Provides excellent support and comfort. Meets the new California 2015 Technical Bulletin #117-2013 standards. Non-allergenic.