CLASSY TANK. This is the best basic piece you can add to your wardrobe. Sleeveless classic tank. Wear it alone , as an under-garment or in layers. The stretchy fabric makes this piece perfect for accenting your other fashions. Stuff it in a drawer. Roll it in a ball and stick it in your gym bag. Pack it in your suitcase and don't give it another thought. A heavenly creation for someone always on the go. Ideal for travel! This new line of clothing is absolutely amazing! Made in the USA. 92% nylon and 8% lycra. It stretches like you wouldn't believe. The colors are fresh for spring and basic for layering. If you turn them inside out to wash them in cold water, do not add bleach and dry flat they will last forever and not loose their great color. Oh, and don't wash them with your jeans or towels - that is too rough against their soft texture. Buy just one. Try it! You'll fall in love and want every color in every style! S/M fits a 0-8 and a M/L fits a 6 -14 It depends on how snug you like to wear your layers.