202 1 Summer New Aoxueqi Fenghua Series Bras Widened Shoulder Straps Bras Silver Fiber Underwear C4- 1 109 Olive Green 70B. Aoxueqi underwear is the first silver ion silver fiber underwear in China. A health-care regulating underwear with the functions of expelling toxin, eliminating dampness, dispelling cold, adsorbing toxin, preventing lobular hyperplasia of mammary glands, and regulating accessory breasts.