Cute slippers make relaxation even better. This terry spa slipper features a memory foam insole, contoured footbed, and a rubber sole. Cute slippers make relaxation even better. This terry spa slipper features a memory foam insole, contoured footbed, and a rubber sole. From Minnetonka. Style: Olivia Thong style Memory foam insole, contoured footbed S (sizes 5 thru 6), M (sizes 6-1/2 thru 7-1/2), L (sizes 8 thru 9), XL (sizes 9-1/2 thru 10) Terry upper; rubber sole Imported Style: Olivia Thong style Memory foam insole, contoured footbed S (sizes 5 thru 6), M (sizes 6-1/2 thru 7-1/2), L (sizes 8 thru 9), XL (sizes 9-1/2 thru 10) Terry upper; rubber sole Imported