Get peak performance and the comfort of cotton with the Under Armour Studio Leggings. They are made of a cotton/poly blend, which offers all-over stretch for ease of movement.. . . . . Fitted: Next-to-skin without the squeeze.. Soft, ultra-lightweight performance cotton fabric delivers incredible comfort. 4-way stretch construction moves better in every direction. Soft & smooth encased elastic waistband. 58% Cotton/32% Polyester/10% Elastane. Machine wash. Imported.