About Acorn Acorn was founded in 1976 by David Quinn, creator of the original Slipper Sock. The Slipper Sock, one of Acorn"s earliest products, was based on Quinn"s memories of ski vacations as a child and the old-fashioned slippers they wore in the cabins. Since those days, the Acorn company has become known for indoor and outdoor footwear that"s as technologically advanced as it is soothing and cozy. Since its humble beginnings, Acorn has held strong to Quinn"s original goal: to provide comfort to the world, one pair of feet at a time. Their commitment to comfort and satisfaction has led them through a wide array of designs and wonderful choices for consumers who care about the state of their feet ... and those of their loved ones. Soft fleece uppers lined with warm faux fleece. Original embroidery and applique detail. Acorn memory foam midsole over layer of featherweight EVA. Durable suede sidewall. Non-slip weatherproof outsole. Available in kid sizes.