For any fan of back to the future, this sock/keytag combo is a must have in your Wardrobe. 
Sock:
Polyester,Cotton blend
Imported
Pull On closure
Machine Wash
Crew length; Fits Men’s shoe size 8-12 and women’s shoe size 9-13; One size fits most; 360 degree artwork stretches and flexes with you to maintain design detail
Premium features Y-Gore heel and elongated stay in place stretch cuff; Medium thick soft comfortable feel; High quality knitted combed cotton polyester spandex blend material; Lightweight, breathable and durable
Keytag:
Double-sided printed. 
Approximately 3 1/2“ x 1 1/2“
Made of Durable plastic