53% Cotton; 47% Polyester; Our products are tested against chemicals that are harmful to health. There are no small parts that babies can swallow, ropes and cords that may pose a danger, and sharp parts in our products. Cycling Collar, Long Sleeve, Our Products Are Tested Against Chemicals Harmful to Health. There Are No Small Parts That Babies Can Swallow, No Danger Ropes And Cords, Sharp Parts In Our Products. Crew Neck, Long Sleeve