I've used these shirts for gym workouts for the past year and they work great!! I also use them for running in weather from sunshine to pouring rain. They hold up well to constant use (over a years worth of use on two of my many and they still look vibrant and not dull". Very comfortable and not overly tight. Great to sleep in too if you like a lighter cooler feel. Definitely worth the price and easily comparable to similar options from more expensive companies.