Martin was famously thin. He has been portrayed as a menace and a thug by conservative blogs and FOX News. But Zimmerman reportedly outweighed the youth by nearly 100 pounds. Although Trayvon Martin stood just under 6 feet 3 inches tall. He only weighed about 150 pounds, according to the New York Times. His lankiness earned him the nickname “Slimm,” which he described himself as on the social networking site Twitter.