Do men wear Thong, definately yes coz i’m too. This is a great and comfortable thong underwear that i found. It call Bruno Banani Magic Thong  from International Jock.

Bruno Banani’s Magic line is made from microfiber 93% Tactel and 7% Elastene for a body-shaping, snug and comfortable fit. You’ll love the magic of the stretchy, soft feel. Features a single thong strap in back and a two-ply contoured support pouch. The Bruno Banani label appears on the side of the pouch. A popular favorite for guys who like thongs.

Because of the unique contoured design, International Jock recommends that you choose the next size up if your waist size falls between two sizes.

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Adams’ general-purpose, top-quality athletic supporter with a wide, red and black-striped 3-inch waistband. Wear it for baseball, soccer, wrestling, the gym, track and other sports. Comfortable knit support pouch of polyester and rubber. The traditional masculine style fits comfortably and offers perfect support.

Adams Style 1001-R - Adams Athletic Supporter