Our workout womens sets 2 piece are made from 95% polyester and 5% spandex, making them very lightweight, soft, 4 way stretch and breathable. This outfit is ideal for various activities, It can become a yoga set, yoga pant, workout set, gym sets, tenins sets depending on your intended use. It also makes a great gift for any girl who loves cats, as each piece features a funny cat print. Each set includes one hollow tank top and one pair of leggings. You can machine wash or hand wash this set, but we recommend hand washing to preserve its durability. If you have any questions during the purchasing process, please contact me for advice.