Foster Grant, or FosterGrant, is an American brand of eyewear founded by Sam Foster in 1929. The Foster Grant brand is a subsidiary company of FGX International, a consumer goods wholesaler with headquarters in Smithfield, Rhode Island, which has been owned by Essilor since 2010. Foster Grant's original production line was ladies' hair accessories; over the company's lifetime they have also produced other plastic materials including heart-lung pumps.