To use this Pearl Crochet Tank, simply put it on over your swimwear. It's a great cover - up for the beach or pool. Since it's hand - crocheted and made of 100% rayon, it's quite delicate. When washing, it's best to hand - wash it in cold water with a gentle detergent. Avoid wringing or twisting it to prevent damage. Hang it to dry in a shaded area to maintain its shape and color. When not in use, store it in a cool, dry place away from direct sunlight to keep it in good condition.