ONEFIT Men's Cotton Thongs G-String Underwear, Pack of 4 95%cotton, 5%spandex. Hand wash or machine wash Very flexible. It feels smooth and soft, very elastic waistband Skinny design, fully shows your figure & muscles Items will be as pictured, 4 Pack in Package About Size: Please do not refer to Size Chart, select the size you usually wear, if it is between two sizes, choose closer to the size