Get cosy with these luxurious open back faux fur slippers. The slippers include a microwavable insert which, when warmed up, provides relief for cold and tired feet. The inserts are fragranced with lavender essential oil. Materials: Cover - 100% polyester Microwavable insert - 100% cotton Filling - 99% tourmaline beads, 1% lavender essential oil Full heating instructions on box. Fits most ladies with shoe size up to size 7 (UK).