What Is the Best Fabric Composition for Gym Leggings?

There is no single best fabric composition for gym leggings because stretch, recovery, opacity, and support depend on more than the fiber ratio.

Nylon/spandex and polyester/spandex blends are common starting points. More spandex does not automatically produce better recovery or a more comfortable fit.

Define the target activity and feel, then evaluate candidate fabrics in the intended pattern across representative sizes before approving the final composition and construction.