Fitted: Next-to-skin without the squeeze. UA Storm technology repels water without sacrificing breathability. 90% Polyester, 10% Elastane. Iron at low temperature. Fastening: Elastic. Fitted. Light, durable and comfortable stretch-woven fabric. Four-way stretch fabrication allows high mobility in any direction. Moisture Transport System wicks sweat and dries fast. Stretch-engineered waistband with adjustable inner elastic for an ideal fit.