In thick pigskin domestic (pig leather) is the slippers of leather depicting the pattern of flowers in the original. Inside touching the skin also use the pigskin domestic. (Yellow leather) The insole use a thick sponge. The material is leather, but is soft lightweight comfort. Also pigskin is better to air permeability. Free for size women (Much of direction 23 ~ 24cm) This slippers to support brighten the lives of the people who wear from the foot. Perfect for GIFT for loved ones.