Those Who Suffer From Tailbone Pain Find The Coccyx Cushion The Most Comfortable Due To The Cut Out At The Back Of The Cushion * This Cut Out Design Significantly Reduces Pressure On The Tailbone * Ergonomically Designed To Provide Support While Reducing Direct Pressure On The Tailbone * Made With Premium Quality Self-molding Memory Foam That Reacts Fast To Provide Instant Relief And Comfort And Provides Slow Memory Foam Recovery For Longer Support * The Removable Soft Polyester And Rayon Cover Zips Off Easily For Machine Washing While The Transport Strap Provides Convenience For Travel * Hypo-allergenic *