Smooth and shine underwear for women: 81%Nylon,19%Spandex; 95%Viscose fiber,5%Spandex Crotch.These satin&lace briefs are breathable and comfortable well, which help you stay cool and fresh all day long. Sexy low cut design stretch your body visually, stretch waistband will not make you feel tight. The black lace looks very sexy.Bikini briefs for women 4 pack: These bikini briefs have a variety of colors to choose. With smooth fabric, they are so soft and surprisingly comfortable. Don't tumble dry;Don't iron;Don't dry clean. Wash dark colours separately. Wash by hand or in a laundry bag.