Keeps bed ridden patients positioned, reducing pressure points under bony prominences. Outer vinyl breathable mesh fabric helps reduce heat buildup. Zippered closure to add or remove beads. X-large fits very tall patients. Machine washable.   #6309M-16Lx6Wx7H”   #6309L-19Lx7Wx9H”   #6309XL-23Lx7Wx9H” Latex Free UNSPSC#42141705