50% Polyester, 50% Cotton Made in the USA Pull On closure Made of 50% cotton, 50% polyester. double-lined hood and pouch pocket. Pill-resistant air jet yarn, double-needle stitching throughout, set-in sleeves. 1x1 ribbed collar, cuffs and waistband with spandex. Best Quality Fabric, Cozy Soft and Comfortable. This high quality product can be washed as you wish and exactly as you always wash your other cloths. From years of experience, we recommend to wash it inside-out with cold water and no dryer for best results. Adult Unisex Sizes. For best fit and easy way to choose your perfect size please refer to the picture we've created with the size chart and guide. Do not confuse with the size chart Amazon offers- It's different than ours! If you need any more information or have any concerns or questions, please don't hesitate and contact us. We are always here for you!