mole·skin 
(mōlskĭn′)
(mōlskĭn′)n.
1. The short, soft, silky fur of a mole.
2.
a. A heavy-napped cotton twill fabric.
b. moleskins Clothing, especially trousers, of this fabric.
3. A soft material, often with an adhesive backing, used especially on the feet to protect against chafing.