Sperry is a company that specializes in boat shoes and other nautical-themed footwear. The company was founded in 1935 by Paul Sperry, who invented the first pair of boat shoes with non-slip soles.
Today, Sperry offers a wide variety of shoes for both men and women, including boat shoes, loafers, sneakers, and sandals. Many of these shoes are made from leather, but not all of them. For example, the Women's Authentic Original 2-Eye Boat Shoe is made from genuine hand-sewn Tru-Moc construction with premium full-grain leather uppers. On the other hand, the Men's Wave Driver Casual Sneaker has canvas uppers with leather trim.
So to answer the question, some Sperry shoes are made from real leather, but not all of them. If you're looking for a pair of Sperrys made entirely from leather, be sure to check the product description before you buy.