From Elomi, this panty features: Cut from a fabric blend of MicroModal® & elastane Soft, flat seams minimize show-through under clothing Stretchy & elastic trim allow the garment to be dual sized Breathable & comfortable to wear MicroModal® is a biodegradable sustainable fiber derived from beech trees & uses less water to produce than cotton Fuller coverage brief shape Cotton gusset Modal/spandex Hand wash Imported.