Size Notification: There will be one or more adjustment buckles. Slide them to adjust the tightness and size. Why but it?   1. Very well to fit different sizes of chest and bust.   2. You can wear it with a bra, and it's great to spice up a tank top or to use in the bedroom. it also packs up tiny, so it's great for travel.   3. It's very sexy and it's also fairly comfy to wear for a decent amount of time. Service: We take full responsibility for our products and service. If any problem on this product, we will fully refund you as soon as we receive your return(Freight at destination not accepted).