Black belly warmer made of soft polyester material, with a pocket for easy use. - Color: Black - Pocket: Yes - Material: 90% polyester, 10% polyurethane - Size: F This item has a pocket for a disposable body warmer (like Hokaron). I have two of the same item, so I'm offering the unworn one. It's thin, so it won't show under your clothes. Thank you for looking.