Material Composition:86% Polyamide, 14% ElastaneCare Instructions:Machine wash up to 40 degrees, gentle cycle, Do not Dry CleanDescription:New AIRism mesh. High performance innerwear with superior drying ability and breathability.- Perfect for sweaty situations thanks to improved deodorizing and DRY technology. – The silky texture is cool to the touch, and superb stretch provides comfort at all times. – Breathable mesh fabric. – Made with Ultra Stretch fabric. – DRY-EX wicks away sweat in the blink of an eye. – Innerwear with a casual fit. – AIRism was jointly developed by UNIQLO and Toray.