Monki Metallic Tanga bikini bottoms is the description but they can pass as briefs too.Fabric is a metallic silver, thick and stretchy. Excellent Halloween costume accessory for any super hero, briefs wearing gal or guy. See size measurements. 95%Polyester 5% Spandex -Large size waistband is 32" and 25" from wait to crotch -Medium size waistband is 30" and 24" from waistband to crotch