Ovation AeroWick Knee Patch Jod has Grip-Tec Silicone Knee Patches, cuff bottoms, and elastic jod straps. AeroWick is a smooth ultra-lightweight spun Polyester Spandex that is two times softer, three times stronger, and wicks eight times faster than Cotton. It has maximum motion 4-way stretch, long-lasting shape retention, and is stain, odor, and microbial resistant. These jods won't restrict movement.