Roost has designed the perfect lightweight performance polo. Made of 93% nylon and 7% spandex, the shirt has the perfect amount of weight and stretch to make it your favorite shirt. Cooling 4-Way Stretch Anti-Microbial (Prevents Odor) Lightweight Wash & Wear Machine Wash, Do Not Bleach and Tumble Dry Size Chart Adult S = 34-36 M = 38-40 L = 42-44 XL = 46-48 2XL = 50-52 3XL = 54-56 Youth YXS = 4-5 YS = 6-8 M = 10-12 L = 14-16 XL = 18 Toddler 2T 3T 4T