100 percent cotton The "bubble portion" is lined in 100 percent cotton Elastic in leg opening Red and white gingham check or Navy and white gingham Check (Navy check is 100% cotton) Snaps in crotch Buttons at back for size adjustment of straps Our girls sunsuit available in several colors. It is lined, with snaps at the crotch and buttons on the shoulder straps. It also has elastic in the leg openings. It would be super cute for 4th of July, and other summer gatherings.