Polyester although man made is the most durable fabric, is very resilient and can withstand a good deal of wear and tear. Polyester also has no shrinkage and holds dye well so there is no fading. No other fabric gives this look which is both slinky and flattering covering any womanly curves. The lace is super soft and not scratch in the slightest. the cups have a double layer of fabric, so this style is suitable to wear around the house and like a little dress. Adjustable straps and elasticated bust with elastic under the cups makes it a great fit for all women in all sizes.