PREMIUM MATERIAL: 95% cotton, 5% spandex. Crotch inner lining: 100% cotton. "Cotton undergarments are the best due to their breathability," Dr Melissa Goist, who is a specialist. The gusset was designed with 100% cotton to provide more comfort and durability to underwear, and for women, it also serves a hygienic purpose. BELIEVE ME, GOOD FABRIC IS THE SOUL OF WOMENS UNDERWEAR!!! PROFESSIONAL DESIGN: This sexy thongs does an amazing job of removing the material on the bottom into an area so discreet, it can be avoided panty line easily. Comfort rib reduce skin contact and stretch your body visually. If you are a huge fan of thong underwear and suffer with wedgies or bunching up in others thongs, this women cotton thong must be your solid choice. If you want to try different styles panties, just start with a simple and cute cotton thong. MY DEAR, YOU DESERVE THE BEST!!! SUPER VALUE 10PACK