Comfort Cool NC79567 Thumb CMC Restriction Splint - Direct CMC Support

In this review of the Comfort Cool NC79567 Thumb CMC Restriction Splint, the bottom line is simple: it is a targeted option for people with thumb CMC joint osteoarthritis or medial subluxation who need direct, lightweight support without bulky immobilization. The reviewer found the contoured neoprene strap and wrap design provide focused compression and improved day-to-day comfort, and the thin perforated material keeps the hand cooler than thicker braces. This review examines fit, materials, real-world use, and durability to help decide if it suits your needs.

Key Features

• Contoured neoprene strap: wraps around the CMC joint and first metacarpal to give focused stabilization where most CMC pain originates.
• Designed for CMC osteoarthritis: specifically addresses osteoarthritis and medial subluxation of the thumb CMC joint for targeted symptom relief.
• Trim-to-fit reinforcement: reinforced stitching lets the splint be trimmed below the thumb MP joint for a customized fit or greater thumb mobility.
• Thin, perforated construction: 1/16' perforated neoprene with a terry cloth liner reduces bulk and helps keep skin cooler and more comfortable during extended wear.
• Latex-free and anti-microbial: materials reduce allergy concerns and help limit odor and bacteria buildup with regular use.

Who It's For

The splint is best suited for adults with symptomatic thumb CMC osteoarthritis, mild instability or tendinitis who need focused support while maintaining some hand function. People who use their hands for daily tasks or who want something lightweight for warm-weather wear will appreciate the thin neoprene and low profile.

Those who need rigid immobilization, heavy-duty protection for high-impact jobs, or a custom-fit orthosis should look elsewhere; likewise anyone with a very small or very large hand beyond the stated size range should consider alternate sizes or models.

Pros & Cons

Pros

• Provides direct CMC joint support that many users report reduces pain and improves function.
• Thin, perforated neoprene with terry liner is comfortable and cooler than thicker splints.
• Reinforced stitching allows trimming under the MP joint for a personalized fit and greater mobility.
• Latex-free and anti-microbial construction reduces allergy risk and odor concerns.

Cons

• Some users report sizing runs slightly large in the hand, so fit may not be perfect for everyone.
• Durability concerns have been noted, with reports of fraying after extended use.

Specifications

Our Verdict

The Comfort Cool NC79567 is a smart pick for people with thumb CMC osteoarthritis or mild subluxation who want targeted support without a bulky brace. It offers a good balance of comfort, breathability and focused stabilization, and the trim-to-fit option is useful. If you need heavy-duty immobilization or are concerned about long-term durability, evaluate alternatives, but for everyday relief and improved hand function this splint represents solid value.

Frequently Asked Questions

Will this splint fit a large thumb?
The large fits an MCP circumference of 8' - 9' and plus sizes are made larger in thumb circumference to accommodate enlarged thumbs.

Can the splint be trimmed for a better fit?
Yes, reinforced stitching allows the splint to be trimmed below the thumb MP joint if you prefer more thumb mobility.

Is this splint suitable for swimming or sweat-prone use?
The thin perforated neoprene with terry liner is cooler and many users report it works for water activities, but rinse and dry thoroughly after exposure to moisture.