Top is 100% cotton, and Bottoms are 95% cotton and 5% spandex.
Waist on pants is elastic and drawstring. There are no pockets

Medium:
Shirt flat pit to pit is 17 inches and stretches easily to 21 inches.
Capri pant waist is 32 inches and stretches easily to 36 inches.

Large:
Shirt flat pit to pit is 19 inches and stretches easily to 23 inches.
Capri pant waist is 36 inches and stretches easily to 40 inches.