100% Polyester More value-for-money products in charts_DRESS 1.One Size Fits Most,it has a lot of stretch to it(mask not included) 2.We’ve added buttons to our top headbands for nurses, doctors, and anyone else that needs to wear a mask (mask not included). These new headbands with buttons will allow you to put the mask straps around the buttons instead of your ears, a more comfortable way to wear face masks! 3.Non Slip – Compression of the headband creates the perfect pressure on the head so that the headband does not slip down the head like other fabrics 4.A Must-have Good Hair Day Headband: Breathable, soft, quality and functional. No slippage, no headaches. Time saver, game changer, necessary part of your wardrobe. 5.Perfect for nurses, doctors and healthcare workers to help avoid burns and sores behind ears from mask straps.