Comfort Cool Thumb CMC Restriction Splint
- Left hand, Medium Plus
- 7.25 to 8.25 inch MCP circumference fit
- Thumb CMC joint and first metacarpal support
- 1/16 inch (1.6mm) perforated neoprene
- Terry cloth liner, anti-microbial
- No natural rubber latex in the build
- Trimmable below the thumb MP joint
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A thin, breathable neoprene thumb splint for CMC arthritis that gives gentle compression around the base of the thumb. It is a soft support, so anyone needing rigid immobilization should look at a stiffer splint.
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ASIN: B001GETJWECategory: Hand & Wrist Braces
Overview
Comfort Cool wraps a contoured neoprene strap around the thumb CMC joint and the first metacarpal to support the base of the thumb with gentle compression. The perforated neoprene has a terry cloth liner, and reinforced stitching lets the splint be trimmed shorter.
Targeted support at the base of the thumb is the reason to buy, since the strap aims straight at the joint arthritis affects. Plus sizing runs larger in the thumb for enlarged joints, but this listing covers only one hand and one size.
Who it's for
Left thumb base pain from osteoarthritis, tendinitis or repetitive motion is what this splint addresses, with room for enlarged thumb joints. People with right hand symptoms or a need for firm immobilization should choose a different item.
Pros and cons
- Direct support at the thumb CMC joint
- Thin perforated neoprene breathes
- Terry liner helps skin stay cool
- Trimmable for a shorter fit
- Left hand only in this listing
- Soft compression, not rigid support
- Care instructions not listed
Performance notes
Relief comes from the contoured strap pressing on the CMC joint and first metacarpal, so a correct size matters more than anything else. Thin perforated neoprene and the terry liner let heat escape, which helps with longer wear.
Specifications
| Brand | Comfort Cool |
|---|---|
| Dimensions & fit | |
| Size | Medium Plus |
| Item Weight | 0.11 pounds |
| Item Dimensions | 8.5 × 5.3 × 0.5 inches |
| Capacity & performance | |
| Age Range Description | Adult |
| Construction & materials | |
| Material | Neoprene |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Target Use Body Part | Hand |
| Sport Type | Walking |
| Number Of Items | 1 |
| Part Number | NC79558 |
| Specific Uses For Product | Tendinitis,Arthritis,Osteoarthritis |
Frequently asked questions
How should I care for the Comfort Cool thumb CMC splint?
The listing gives no washing instructions. It does say the material is anti-microbial, and reinforced stitching allows trimming below the thumb MP joint if you want a shorter fit.
What does Plus mean on the Comfort Cool thumb splint?
Plus sizes are a half size bigger in the hand and a full size larger in thumb circumference, to accommodate enlarged thumb conditions.
Does the Comfort Cool 72355 fit the right hand?
No. This listing is for the left hand.
Is the Comfort Cool thumb splint rigid?
No. It is a contoured neoprene strap that provides gentle compression for thumb CMC support.