New York Mets CAP & ADULT XL JERSEY MLB Licensed Replica Combo Set Outdoor Cap Co. MLB Licensed Adjustable Velcro Hat Majestic - MLB Licensed 100% Cotton Crewneck T-Shirt Replica Jersey Official Team Cap & Uniform of Youth & Adult Baseball/Softball Leagues Official Major League Baseball Logo/Name Cap Sizes: Youth 6 3/8 - 7 (Ages 12 & Under); Adult 6 7/8 - 7 1/2 (Ages 12 & Up)