These are some of the most comfortable caps I have ever worn! They are made from 96% polyester and 4% spandex. They come in 3 sizes, so please check the sizing instructions to ensure you get the perfect fit! I am able to provide free shipping within the United States.
 
Sizing Instructions:
Measure the circumference around the head, above the eyebrow and at the widest part of the head. Divide number by 3.14 for hat size.
 
S/M -   7 1/8 - 7 3/8
M/L -   7 3/8 - 7 5/8
L/XL -  7 5/8 - 7 7/8