New DonJoy Performance Trizone Ankle Compression Sleeve Adult Black Small Small:Black Injected comp weave quarter package 38M:Yellow Orange Black Injected comp weave quarter package for a flexible fit Molded comfort EVA footbed for premium comfort Microfiber liner for a comfortable feel Anaform ankle padding for increased protection HI LO Ventilator Steel chassis for overall control HI LO Court wheels for improved striding Reflective bar at the back for visibility in low light strained tendons and weak ankles All natural carbonized bamboo is thermal regulating and anti bacterial helping eliminate odors Comfortably fits in all shoe types Reflectivity for enhanced visibility in low light conditions Three zones of compression strategically placed around the ankle to deliver peak performance Silicone banding injected directly onto the sleeve adds medial lateral support to sprained ligaments