Defining what constitutes “good” workout pants will mostly come down to what sort of exercise you engage in, as well as any personal likes or dislikes you may have regarding the style of pants. General factors related to how clothes should function when you’ve increased physical movement—such as comfort, material flexibility, breathability and resilience—are pretty universal. Many brands have honed in on these requirements by developing gear that’s lightweight, wicks moisture and tackles odor. Workout pants that transcend the realm of exercise and double up as lounging or casual clothes might add anti-wrinkle properties to fabrics.

That said, those who participate in specific exercises—take runners and hikers who often spend time outside, for example—might take to more advanced gear, like wind- and water-resistant materials and UPF (Ultraviolet Protection Factor) ratings to guard them from the elements. Weightlifters and yoga practitioners, on the other hand, might prioritize ultra-stretchy and more form-fitting fabrics to support their precise movements. Regardless of where or how you work out, secure pockets for keeping your belongings are almost always going to be a win when you’re more active.

Once again, this might come down to personal choice, but overall, joggers are considered a good fit for the gym. Firstly, they’re comfortable. It’s as simple as that. Secondly, in case of accidents, they act as a direct protective barrier between your legs (especially your vulnerable shins and knees) and potentially injurious gym apparatus or environmental factors. They also reduce the risk of exposure to pathogens like bacteria and viruses that can enter damaged skin from unclean exercise equipment. Other practical advantages of joggers come down to their material weight. Heavier joggers can trap heat, which warms up your muscles faster. Thicker joggers are also useful if you’d intentionally like to sweat more during a workout. With that in mind, more lightweight joggers still protect your lower half, but can be found in more breathable fabrics. The various jogger types, together with each of their own benefits, ultimately depend on what you’re hoping to achieve.