From Le Mystere, this brief panty features: Leak resistant panties  Incredibly light, chic, and comfortable modern brief silhouette is Designed with soft, sleek matte microfiber Perfect amount of spandex that stretches to fit and skims the natural contours of the body Extended length gusset designed with leak proof technology for light-medium absorbency Directly against the body is a soft jersey gusset liner Antibacterial and anti-odor Clean, bonded edges that disappear under clothing for a no-show look Wear these to the gym, as daily incontinence leak protection or as a backup liner for your period Beneath the liner is an absorbent, double-knit hydrophilic (attracts liquid)/hydrophobic (prevents leaks) interliner that absorbs moisture, while simultaneously preventing liquids from leaking to outer side of garment Nylon/Spandex; Crotch: Polyester/Spandex Machine Wash/Line Dry Imported.