G-string is a type of undergarment which contains fewer clothes to conceal the body parts. Both men and women can wear g-strings as they come in different styles and according to the needs of both sexes. G-string is considered a type of thing, even though there are many differences when comparing Thong Vs. string. It contains a string around the waist and between the buttocks. The string is so thin that it cannot even see through dresses.