Material: 75%Nylon+25%Spandex,it is super soft and stretchy,double lined and good to wear without bra,doesn’t see through. Care Instructions: Hand Wash Only Size: S--bust--28.4” High elasticity and snap-button fastening at the bottom making this sexy clubwear bodysuit very easy to wear. This square neck tank bodysuit with thick strap looks more formal,elegant and chic. This square neck tops bodysuit for women feature with sleeveless,square neck,double lined,seamless and backless, sexy and elegant in the meanwhile.