Sonic the Hedgehog Hat for Boys 4-6 - Sonic Hat Bundle with Sonic the Hedgehog Baseball Cap for Kids Plus Stickers, More | Sonic Baseball Hat for Boys, Kids. This Sonic the Hedgehog baseball cap set includes one Sonic hat with adjustable back strap and colorful artwork of everybody's favorite hedgehog, Sonic! This Sonic the Hedgehog 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 Sonic and video games, this Sonic the Hedgehog baseball hat is perfect to give as a gift to your favorite Sonic the Hedgehog or videogame fan. Officially licensed Sonic the Hedgehog hat for kids of all ages, boys and girls alike, also comes with Sonic the Hedgehog stickers and a Rex-Man door hanger.