The unisex working Caps can adjust the size and make the Caps fit well. Suitable for Head Circumference: about 54-58cm/21.26-22.83''. You can simply adjust the tie to fit men and women with different head shape and hair types. It could be used as a nurse's Caps, scrub Caps, Caps, doctor hat, nurse hat and so on. Suitable for clinic, hospital, health care, housework, yard work, painting, carpentry, cooking and so on.