CMC Thumb Brace Basal Joint Support Splint Left or Right Hand
Free shipping with USPSOnly 5 items left due to high demand during the SALE. If you can still see the "Add to Cart" button, the item is still available.
A shaped brace that wraps the base of the thumb and holds the CMC joint — the saddle joint where the thumb meets the wrist — while leaving the fingers and the wrist itself free to move.
Key features of this CMC thumb brace:
- Supports the basal joint specifically, rather than immobilising the whole wrist
- Made for one hand at a time: choose left or right
- Three sizes by hand circumference: S fits 5.9 to 7.1 in, M fits 7.1 to 8.3 in, L fits 7.9 to 9.4 in (15 to 18, 18 to 21 and 20 to 24 cm)
- Contoured shape intended for wear through a normal day
- Gray or beige
Measure around the widest part of the palm, excluding the thumb, and match that to the size chart above — the sizes overlap slightly, so take the smaller one for a firmer hold. This is a supportive brace, not a medical device or a treatment: if you have joint pain, ask a clinician what support is appropriate before relying on it.
Choose options

Customer service 6 days a week
Here when you need us
Our customer service team works 6 days a week to support our customers with care and attention. Real people and real conversations — because great service is just as important as great design.
FREE SHIPPING
We offer FREE USPS Shipping on all orders shipped within the United States.
Shipping policy60-DAY MONEY BACK GUARANTEE
You can request a return or refund within 60 days of delivery.
Return and Refund PolicyCONTACT US
Customer Service Hours:
Mon–Fri: 8:00 AM – 5:00 PM (GMT+8)
Sat–Sun: 9:00 AM – 4:00 PM (GMT+8)
