Say hello to the world's comfiest footwear. Crafted from 65% breathable New Zealand wool and 35% bamboo yarn with unique “heel-hugging design” for a snug and warm fit. Finished with a handstitched soft leather sole for long-lasting wear. Their unique 'heel-hugging' design allows for a snug and cozy fit. Made ethically by local women in Cambodia supporting fair wages. EASY CARE: Machine washable on cool wool program with mild wool detergent. Dry flat. Do not tumble dry. SIZE INFORMATION: Designed to cover two regular shoe sizes, these slippers will shape to your feet for maximum comfort. Not sure of your size? Simply draw around the shape of your feet on a piece of paper and measure the length including your longest toe and base of your heel. See below for our size chart.