Because nothing says "work appropriate" like a sleeveless shirt with line drawings of animals on it on it.
I found Mr El-No while riding the train during the morning rush. He had me with the tank top. Of course the cargo camo shorts and white sock/ Doc Martins didn't hurt either.
He looked ready for a suburban safari by way of Red Lobster and the Brookfield Zoo.
Generally I think men should avoid tank tops. It is a hard look to pull off. You'll either end up looking like a Jersey Shore extra or a lost tourist. Originally popularized as an undershirt, tanks were never supposed to see the light of day. Let's keep it that way!
Sir, please ditch the tank top. What about this untucked/ sleeves rolled up Crate Chambray shirt ($69) from Urban Outfitters to coordinate with your camo shorts? Swap out the socks/Docs for the Sperry Washed Canvas Shoe ($78) from Urban Outfitters. Much better!