Athleta Calm Cool Romper Black S NWT FOR: Lounging, relaxing, and a good night's sleep FEEL: Cooling and luxurious handfeel FAVE: Cool-to-the-touch and designed to release body heat to keep you comfortable all night long. Plus, this silky-smooth fabric is ultra- breathable to help evaporate sweat while you sleep • Fit tip: If you're in-between sizes, we suggest sizing up for the best wear experience Cupro Rayon BREATHABLE: Airflow moves easily through the garment Semi-fitted, skims easily over the body Body length. 28" Size Small