Snug-fitting compression fabric forms a performance layer that keeps you cool and distraction-free throughout your training session. Thumbholes in cuffs keep hands warm and keep sleeves from creeping up. Reflective logos enhance visibility in low light or at night. Breathable mesh vents excess heat for cool comfort. Smooth flatlock seaming won't rub or irritate. Compression fabric fits tighter to support muscles, reducing fatigue and speeding recovery time. 80% nylon, 20% elastane. Machine wash cold, tumble dry low. By O'Neill; imported. Women's Active & Swim.