Same great design and the regular Nufoot Betsy Lou with a soft fuzzy interior. The strap detail is adorable like the mary jane and more fitted than the ballet flat slipper. Made of thin neoprene, these Nufoot Betsy Lou shoes are intended for indoor use. Strap is not adjustable. Machine wash cold; air dry. Size small fits a ladies shoe size of 4-5, size medium 6-8, size large 8-10 and size xlarge 10-12. Machine washable.