We love running in cotton T-shirts—and so should you. Here's how to score a free Runner's World cotton T-shirt and join the movement.

This 100 percent Supima cotton shirt has a great feel: it’s light and allows for easy, comfortable motion, and it won’t build up heat, yet it’s not anywhere near transparent or see-through.

The science of ruining your favorite shirt is more complicated than you might think. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It's ...

Not just any T-shirt will do, however. You cannot just reach into your gym bag and come up with an option. You need to consider cut, fabric (sheer is probably not a good idea for the office) and ...

The T-shirt is made from single-origin cotton from a regenerative farm in Alabama, and spun, cut, and sewn without leaving a three-state, 400-mile radius.

Not having to iron a cotton shirt, which also sheds biodegradable fibre in the environment rather than synthetics when washed, could become a reality in the future with a new CSIRO project underway.