Allegro Dual-Flex wrist supports feature four stays on the front and back of the wrist to limit flexion (downward) and extension (upward) movement while ensuring neutral wrist position. These units are lined to keep hands dry and fit. They are easy to put on and wrap completely around the wrist for added support. These units come with an easy to adjust hook & loop closure, and are available in small, medium, large & extra-large sizes.