Majestic Major League Baseball Fan Shop Team T-Shirt and Adjustable Cap (New York Mets, Youth Large) AUTHENTICITY: Officially Licensed Team Apparel QUALITY T-SHIRT MATERIAL: Classic Team Wordmark Crew Neck Tee made of 100% soft lightweight cotton ( Available in Adult M - 2XL and Youth S - XL) QUALITY BALL CAP MATERIAL: Polyester/Twill Mid to Low Profile CF2 Visor Structured Cap with Black undervisor for extra sun-blocking CAP SIZE: Adjustable Youth and Adult; Youth: 6 3/8  7; Adult: 6 7/8  7 1/2 TEAM PRIDE: Team Logo and MLB logos; Complete package for the right Fan!