Classic Aircooled 911 Side Profile OutlineBe part of the Aircooled Crew and make your friends jealous.Fabrication: Solid colors are made from 100% ring-spun cotton; Sport Grey is 90% ring-spun cotton, 10% polyester; Heather colors are 35% cotton, 65% polyester; Graphite Heather is 65% cotton, 35% polyester.