Carhartt Lightweight Henley

The henley is a supremely functional and downright economical shirt – a long-sleeve T-shirt, a base layer, and a pajama top all rolled into one –  and it always looks good under a blazer or tighter-fitting coat. The Carhartt company may be best known for the work wear they've been producing since southern Michigan boy Hamilton Carhartt made his first pair of overalls for railroad engineers in 1889, but the brand has developed a lighter touch with some of its less labor-oriented products and its henley is the perfect example of what this type of shirt should be. The textured thermal henley stands out for being warm yet lightweight and breathable in a 5.5-ounce cotton-poly blend. It's also got a slim fit, so it goes under clothes without adding bulk. [Carhartt Lightweight Thermal Knit Henley (Beige Heather), $30;]