Dr. Sheepskin Insoles are 100% Natural Sheepskin Insoles, made from quality sheepskin. One size fits most - simply trim your insoles using the included template for a perfect fit. Adjustable for men and women. Our sheepskin insoles feature unique markings. These markings add beauty to the insole and serve as proof of authenticity. Sheepskin is a natural material, so every hide has unique characteristics; this is only natural.