"Johnny" is a novelty hair loss cap made of soft, knit fabric. The pattern requires knit fabric with 20-25% stretch across the width. It is sized for people with little to no hair. This is a downloadable sewing pattern and set of instructions. Nothing will be mailed. The fabric and foam roller requirements are shown in the last photo. Foam rollers can be purchased at dollar stores, discount department stores and online. You will need 22 foam rollers. The size range is 20" to 24" head circumference. XS-M fits a 20"-22" head circumference. L/XL fits 23-24". The hat is designed with no exposed seams to protect sensitive scalps.