Athleta Size Medium Product Details FOR: Yoga, gym, running errands, FEEL: VITAFREE fabric with enhanced LYCRA® fiber is our lightest-feel yoga fabric for a barely there, yet fully covered sensation FAVE: Second-skin fabric stretches to your body and maintains its shape 75% Nylon/25% Lycra WICKING: Pulls sweat away from the body to the surface of the fabric so it can evaporate ALL-AROUND STRETCH: Provides ultimate comfort and mobility RATED UPF 50+ (Excellent Protection) BREATHABLE: Airflow moves easily through the garment QUICK-DRYING: Dries in a flash for ultimate comfort when breaking a sweat