A G-string is a garment consisting of a narrow piece of material that barely covers the genitals, a string-like piece that passes between the buttocks, and a very thin waistband around the hips. There are designs for both women and men. Men's G-strings are similar to women's but have a front pouch that covers the genitals. G-strings are typically worn as underwear or swimwear or as part of the costume of an exotic dancer.