Pamper your feet with soothing warm therapy or invigorating cold therapy. These plush booties are filled with a unique physician-formulated combination of flax seed and 12 aromatic herbs including lavender rosemary peppermint chamomile and cinnamon. Heat them in the microwave and theyll slowly release moist warm heat to soothe aching feet. Or chill them in the freezer and enjoy energizing cold therapy that will help ease tired swollen feet. 100 percent soft cotton velour terry. One size fits womens shoe sizes 6-10.