This Birdie Bean Aquarius Ribbed Tank Top is perfect for your little one's everyday adventures. Whether it's a playdate or a casual day at home, it will keep them cool and comfortable. The tank is made of 95% bamboo viscose and 5% spandex. It's soft, great for sensitive skin, and not treated with harsh chemicals. There are no tags for extra comfort. Sizing: Size up when between sizes. Models are wearing 2T and 4T. Check the size chart for details. Care instructions: Machine wash cold with mild detergent, inside - out with other bamboo items. Tumble dry low, lay flat, or hang to dry. Do not bleach and use color catcher sheets to avoid color transfer.