The One Long Sleeve in dark blue offers a perfect fit that you’ll want to wear all day, every day. Made from a groundbreaking material, it is incredibly soft against the skin, while also being moisture-wicking, quick-drying, and breathable. Whether you’re going to your favorite workout class or pairing it with today’s outfit, this long sleeve is ready for anything. Material & Care. Composition: 90% Polyester, 10% Elastane. Care instructions: Machine wash at 30°C / Do not bleach / Do not tumble dry / Wash inside out / Wash with similar colors / Do not use fabric softener.