The Invacare Matrx Elite Back Cover fits over an Invacare Matrx Elite Back for increased user comfort and support. Built-in foam attached to moisture-resistant breathable cover help create a more comfortable environment for the user. For Quotes and Orders, please contact Matrx Seating & Positioning Customer Service at -1-866-748-7943 or visit www.motionconcepts.com for more product information.