No uncomfortable wires and tight straps! Beatiful & Glossy rib silk 100% (besides straps & under bust). Since it is simple, wearing with various kind of tops, espacially see through one is perfect. Under bust is so stretchy that you would feel less stressful and relaxed. 100% natural silk has the below functions. -Skin Care: Silk protein is one of the best underwear materials. Very gentle on your skin and the most hypoallergenic of all fabrics, anti-static. Higly recommended for sensitive or allergy-prone skin, taking care of your body. -Moisture-Wicking: The excellent moisture absorption and desorption properties keep you comfortable all day long. BODY SILK 100% BOTTOM POLYAMIDE 90% ELASTANE 10% TAPE POLYAMIDE 90% ELASTANE 10% LACE POLYAMIDE 75% ELASTANE 25% Use neutral detargent, use non-fluorescent detargent using at iron, steam while floating the iron. When washed, separately from other items toavoid the color transfer. There is a risk of color transfer if it is wet with water or sweat and subjected to strong friction. Adjust the shape and dry it. Please handle with care as delicate lace is used.