In thick pigskin domestic (pig leather) is the slippers of leather depicting the trees of the handle in the original edition. Inside touching the skin also use the pigskin domestic. (Yellow leather) Insole is using a thick sponge, but leather is soft and 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.