Comfort Smiley Face Slippers Happy Soft Fluffy Smiling SlidesComfy cloud soft and lightweight coral cotton fleece slippers so you can be smiling from head to toe. Measure your heel to toe length: If your size falls between two sizes, order the larger size. If your feet are wide or thick, please choose one size bigger. Size UK Australia International Size Foot length (cm) 5 to 6 36 to 37 22. 5 to 23 6 to 7 38 to 39 23. 5 to 24 7 to 8 40 to 41 24. 5 to 25 8 to 9 42 to 43 25. 5 to 26 9 to 10 44 to 45 26. 5 to 27