"With only about 10-20 individuals remaining, the Vaquita, the world's rarest marine mammal, is on the edge of extinction. The vaquita is about 5 feet long and is one of the smallest members of the dolphin, whale, and porpoise family. Vaquitas have small, strong bodies with a rounded head and no beak. This little porpoise wasn't discovered until 1958 and a little over half a century later, we are on the brink of losing them forever. 10% of the proceeds from our Endangered Species collection will benefit organizations that prioritize wildlife conservation.? ?Content: 51% cotton, 47% nylon, 2% spandex. Fits approximate women's shoe sizes 5¨C10.5, fits men's approximate shoe size 3-8."