The 3pp® ThumSling® is made with foam-lined material that contours to the hand for non-bulky support that can be worn all day or night. The conforming four-way stretch fabric provides even joint compression and support without increased bulk. The material is soft, breathable fabric and foam that allows airflow all over. A 2-inch removable stay is included for added control and custom fit. The wrap-around splint adjusts to your level of comfortable support. The 3pp® ThumSling® soft, lightweight thumb wrap splint applies light compression to relieve arthritis pain at the base or CMC joint of the thumb.