Luxuriously Soft, Ribbed Modal Stretch Fabric Fan-favorite Second Skin fabric with a ribbed texture for extra airflow. Super Soft - Naturally breathable with a luxurious feel. Ribbed Channels - Enhances airflow so you don't sweat the bed. Won't Stretch Out - Keeps its shape, no bag or sag. Non-Pilling - No lint balls or fuzz, wash after wash. When To Wear A Sleep Tee for bedroom to breakfast and between the sheets (not for the streets). Additional Features. Refined & Modern - A flattering fit for everybody. Tagless Label - Enhanced comfort, we really thought of everything. Model's Measurements - Model is 5'9", Bust: 34", wearing a size small. Fabric & Care Fabric: 66% Acrylic, 29% Modal, 5% Spandex. Machine wash cold. Tumble dry low