He will love the comfort and style of our new boys swim shorts by Mullet Swim of Shrimp and Grits Kids! The Blue Check Board Shorts in blue and white gingham features an elastic waist with tie, liner, and blue trim. Recommended for pool and oceanic use. 100% Polyester. See Size Guide. xs(2t-3t),s(4t-5t),m(5-6),l(7-8),xl(9-10).