UGThome bra pad inserts can be used in swimsuit/bikini top/sports bras/wedding dress/underwire bra/bathsuit,Buy different style shapes according to the style you need.They are more for coverage than for lift/increase of bust.They are basically fabric that are secured with a sew stitch, so you can put them in loosely??you might have to sew it in so it doesn’t move.The pads for me are thick enough to wear a tshirt without worrying about my headlights showing. It works great for work out bras that have a pocket you slide them in.THICK:They are thicker than the pads that any of your sports bras/bralettes come with but you would not consider them thick. you would say they are about the thickness of 2 normal pads put together – but they will not make our chest look larger or extra padded.SIZE:A CUP /B CUP/ C CUP /D CUP /E CUP .follow the picture ??choice the right size.Before buying, you need to measure the size of the cup of sports bra.So as not to cause trouble to you.NOTE:there are 3 pairs. Six pads total??they’re washable, but try not to dry them in the dryer. I would lay them out to dry. It will lose its original state and kinda get permanently wrinkled and won’t look good wearing in a sports bra.