Put your designs to the ultimate test by creating your own custom workout leggings. These custom printed gym leggings are created with movement in mind, featuring our Flex Sport Lycra fabric that is stretchy with great compression. You can design your own custom gym leggings with a regular or high waist, and with a capri or full length to materialise your vision. They're all-over printed with five separate areas for you to design, so you have ample freedom to create the perfect garment. Custom Printed Gym Leggings. Custom Workout Leggings.