Our paperboard food tray sleeve is a white, single-use sleeve that covers and protects the contents of filled rectangular food trays. This sleeve is compatible with any Southern Champion Tray 3 lb. (#300) capacity food trays (food trays not included). The sleeve allows for trays to be easily transported or stacked when full. Made from clay-coated kraft paperboard, the coating helps protect against moisture. Tray sleeves are microwavable for reheat and are also recyclable.