Onyx A/M-24 Automatic/Manual Inflatable Life Jacket - Low Profile

In this review of the Onyx A/M-24 inflatable life jacket the bottom line is simple: this is a lightweight, low-profile PFD best suited to boaters, kayakers and anglers who want USCG-approved flotation that does not restrict movement. The reviewer found the jacket comfortable on extended wear, with a neoprene neckline and adjustable belt that keep it secure without rubbing. Its dual inflation system - automatic on water immersion with a manual pull option and an oral tube backup - is the single biggest reason to buy for anyone who needs dependable buoyancy without bulk.

Key Features

• USCG Approved: The jacket meets U.S. Coast Guard approval and inflates automatically on water immersion or by pulling the manual handle, giving certified protection for water use.
• Dual Inflation: Automatic inflation plus a manual handle and back-up oral tube provide redundant ways to get buoyancy when it matters most.
• High Buoyancy: Provides 22.5 pounds of buoyant force when fully inflated, enough to keep the head above water for most adult users in recommended conditions.
• Manual Conversion: Converts to manual-only mode for paddling or fly-fishing so the bladder will not inflate during routine splashes or heavy spray.
• Comfortable Fit: Adjustable body belt, front buckle closure and a neoprene neckline combine for a secure fit that is comfortable for long sessions on the water.
• Reusable Design: The device can be rearmed after inflation using the specified rearming kit, allowing continued use after deployment.

Who It's For

The Onyx A/M-24 is ideal for adult paddlers, anglers and casual boaters who want a compact, lightweight USCG-approved PFD that does not restrict arm movement. It works particularly well for kayak and paddle board users who value a low-profile design and the option to switch to manual-only inflation to avoid accidental deployments.

It is not intended for children or users under 80 lbs, nor is it a full-time replacement for inherently buoyant life vests required for certain commercial or regulatory scenarios. Users who need large, inherent-buoyancy foam vests for constant wear or who require sizes outside the stated 30-52 in chest range should look at alternative models.

Pros & Cons

Pros

• Lightweight and low profile, allowing freedom of movement during paddling and fishing.
• Clear safety redundancy with automatic and manual inflation plus an oral inflation tube.
• Comfortable neoprene neckline and adjustable belt create a secure, non-chafing fit.
• Provides 22.5 lb of buoyancy, sufficient to support an adult and keep the head above water.

Cons

• Requires rearming kit after inflation, so users should have spares and read the owners manual to practice rearming.
• Not suitable for children or users under 80 lbs, limiting use to adults only.

Specifications

Approval	U.S. Coast Guard approved
Inflation type	Automatic and manual with oral inflation tube
Buoyancy	22.5 pounds when fully inflated
Recommended user	Adults 16+ and over 80 lbs
Fit range	Chest 30-52 in
Conversion	Manual-only conversion cap included
Rearming	Use Onyx rearming kit #1352

Our Verdict

The Onyx A/M-24 is a practical, well-balanced inflatable PFD for adult recreational users who want certified flotation without bulk. Its dual inflation system and comfortable low-profile fit make it good value for kayakers, stand-up paddlers and anglers who need reliable buoyancy and minimal interference with activity. Keep a rearming kit on hand and follow the owner manual to maintain readiness.

Frequently Asked Questions

Can this PFD be used for paddling and kayaking?
Yes. It converts to manual-only mode to reduce accidental deployment during paddling and its low-profile fit preserves arm mobility.

What happens after it inflates?
After inflation the jacket provides 22.5 lb of buoyancy and can be reused after following the rearming procedure; use the recommended Onyx rearming kit.

Who is this life jacket approved for?
The jacket is USCG-approved for users 16 years or older and weighing over 80 lbs, with a chest fit range of 30-52 in.