NEGATIVE Eyelet Lace Long in Black Size Medium -NWT; I ordered these for myself and briefly tried them on with underwear for sanitary reasons. I am the original owner. -Size is M; see size chart in listing photos for sizing -Retails $35 online Description from Negative website: “Most iconic fabric. Classic low-rise cut. Our modern take on lace in a go-to style. This is far from your average black thong. -Made from a perforated stretch eyelet -94% Nylon 6% Spandex -100% Cotton gusset lining -Certified Safe: OEKO-TEX® STANDARD 100 #23.HCN.86212 by Hohenstein HTTI -Machine wash cold, hang dry, wear often”