Do Not Bleach Made by high quality polyester,soft, comfortable and good air permeability. Lightweight fabric with moisture-wicking. Sewn with flat stitch seams reinforced with a double hem loop for additional durability. We utilize the latest sublimation digital printing technology for bold, vibrant colors that will NOT fade or dull (even with washing). Machine washable or hand wash, do not bleach. It is suitable for running,traveling,work, daily wear,etc,it is the best choice for outdoor sports and outings. Refer to the sizing chart in the photo of this listing.Our size chart is different from the Amazon size chart.