Easy to put on - just step in and inflate! Self inflates in seconds. Comes with battery pack and fan. Fits most adults 5ft to 6ft tall. Includes costume, battery pack, and fan. Costume made of 90% polyester, 5% plastic, and 5% electronics. Wipe with damp sponge, air dry, and store in cool dry place. Requires 4 "AA" batteries. Lightweight- Cool and Comfortable!