These ultra cute slippers by Warm Whiskers are perfect for spa like relaxation. The Warm Whiskers Adult Slippers are heatable & freezable, containing a removable insert that is filled with a blend of flaxseed & lavender (mild scent). The entire slipper can be placed in the microwave (sole facing up) & heated for 30-45 seconds to provide your tired feet with 30 minutes of heated delight. Additionally, these fun slippers can be chilled in a freezer for an hour to reduce the swelling of tired or overworked feet. Warm Whiskers slippers come in women's size medium (8-9).