The CMC-X" Lacer Thumb Stabilizer helps provide pain relief from carpometacarpal (CMC) joint arthritis while permitting you to do the activities you enjoy.The CMC-X Lacer has the same X straps and stay pod as the original CMC-X" Thumb Stabilizer. However, the CMC-X Lacer has a speed lacer closure system around the wrist for faster application and is bilateral so a given size will fit both the left or right thumb. The body of the CMC-X Lacer is made from hypoallergenic CoolFlex" material for comfort and compression. The CMC-X Lacer does not contain any natural latex rubber or neoprene. Fits Left or Right