Have fun on the island in this Chubbies The Don't Be Jelly Performance Polo Shirt in Black in Pattern Base (Plaids). This The Don't Be Jelly Performance Polo Shirt by Chubbies features anti-bacterial, moisture wicking, UPF 50 , anti-static, ultra stretchy. This Chubbies The Don't Be Jelly Performance Polo Shirt is made of 90% Polyester, 10% Spandex.