Mickey Mouse Hat for Boys 4-6 - Disney Mickey Hat Bundle with Mickey Mouse Baseball Cap for Kids Plus Stickers, More | Mickey Mouse Baseball Hat for Boys, Kids. This Mickey Mouse baseball cap set includes one Mickey hat with adjustable back strap and colorful artwork of Mickey Mouse with 3D ears. This Mickey Mouse cap for boys measures 6'' x 5'' x 10'' and with its adjustable back strap, it comfortably fits most young children's heads. Great for any fan of Disney and Mickey Mouse, this Mickey baseball hat is perfect to give as a gift to your favorite Mickey Mouse fan. Officially licensed Mickey Mouse hat for kids of all ages, boys and girls alike, also comes with Mickey Mouse stickers and a Disney bookmark.