Spiderman Hat for Boys 4-6 - Marvel Hat Bundle with Spiderman Baseball Cap for Kids Plus Spiderman Stickers, More | Spiderman Hat for Boys, Kids. This Marvel baseball cap set includes one Spiderman hat with adjustable back strap and colorful artwork of Spiderman across the front. This Spiderman 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 Marvel and Spiderman, this Spiderman baseball hat is perfect to give as a gift to your favorite Spiderman or superhero fan. Officially licensed Spiderman hat for kids of all ages, boys and girls alike, also comes with Spiderman stickers and a superhero door hanger.