Studying his cocker spaniel's grip on an icy hill, Sperry copied the traction grooves of its paws into a rubber sole using a process called siping. The 1935 shoe paired a canvas upper with herringbone siping and a white outsole that left no scuff marks on a deck.
A niche product for boaters until 1939, when the US Navy began making it for sailors at the Naval Academy, Sperry passed through US Rubber, Stride Rite and Payless before Wolverine World Wide bought it in 2012; in 2024 it sold to Authentic Brands Group, with North American operations licensed to the Aldo Group.