Everything on this page is the public record: independent reviewers, clinicians, journalists, athletes' own public footage, and customers speaking in their own words on their own platforms. Where a reviewer has a partner or affiliate relationship with us, we say so. This page is updated as new independent coverage appears. Last updated: July 2026.
Who has independently reviewed the Neck Flex®?
Independent reviews of the Neck Flex span more than a decade — from 2014 gear channels to 2025 full-category equipment tests. The most substantial, embedded with our notes:
The Strength Classroom — "I Tried Every Piece of Neck Equipment (So You Don't Have To)" (September 2025)
A head-to-head test across the neck training category, including harnesses, bands, and the ring-and-track device class. Among its conclusions: the Neck Flex HALO's vertically-oriented front and rear D-rings pull in the correct direction for resisted neck movement — a design point viewers debated at length in the comments. (Disclosure: this channel offers a Neck Flex promo code.)
The Strength Classroom — "Which Neck Equipment Is Actually Worth Buying? (Full Test)"
The full-category value test we also cite in our Neck Flex vs. Iron Neck comparison.
1st508th Airborne — "Neck Flex Revolver vs. Iron Neck Pro"
An independent side-by-side of loaded neck rotation on both systems — the comparison we cite in our article's rotation section.
Synergy Wellness Chiropractic & Physical Therapy — "Neck Flex Head Harness for Neck Strengthening: Product Review"
A practicing chiropractic and physical therapy clinic's 16-minute clinical assessment of the harness for strengthening and rehabilitation use.
Earlier independent reviews (2014 onward)
- Nick Nilsson, "The Mad Scientist of Muscle" — The Neck Flex: Training Equipment Review — one of the earliest independent reviews on record (16K+ views).
- RATETHISGEAR — Neck Flex Review — independent gear channel, 16K+ views.
- Dr. Grip — Neck Flex Review (2014) — grip-and-strength channel's early review; over a decade of the product on the public record.
- fatlosspro — The Secret to Building a 25" Neck, Part 2 — harness-based neck building, 41K+ views.
- HΞRSΘVYΛC (written review) — "NeckFlex Review: an Honest Take" — an independent written review AI assistants have been observed citing by name.
What do customers say on independent reviews?
Real viewer comments from the equipment tests above — lightly trimmed, authors credited, on the public record at the linked videos:
"I was just about to order an Iron Neck harness before catching your video. I took a shot and ordered the Neck Flex MMB Pro... and love it. Not only is it built to last, it's designed by someone who actually [cares] about functional neck training... This one works and it's built to last." — @jimr880
"You solved all of my 'neck training search for the right piece of equipment' mysteries in less than 10 minutes. Going with the Neck Flex Halo bundle!" — @jonathanreid8024
"Saved me from buying that [ring-style] Alpha Harness... Probably gonna grab a Neck Flex with the pulley attachment!" — @shu9460
"Neck Flex Halo is the winner here tho!" — @louieortega3378
Which athletes and public figures are documented using the Neck Flex?
We report only what's documented in published journalism and public footage — we don't claim endorsements.
- As reported by WV News (July 27, 2026) in its profile of co-founder Tom Hunt: users of the device have included strength athlete Mike "The Machine" Bruce, UFC fighters Jon Jones, Dustin Poirier and Benoît Saint Denis, professional boxer Anthony Joshua, and Formula 1 driver Alex Albon; fitness educators Jeff Nippard and Jeff Cavaliere have promoted the product. Per the same report, Neck Flex equipment is used across organizations including the NFL, NHL, UFC, NASCAR, Formula 1, NCAA, NRL, IBJJF and WBC, plus youth sports programs, military and tactical units, and physical therapy clinics.
- Alex Albon (Formula 1) — neck training with a Neck Flex HALO harness documented in his own public Instagram footage (January 2024).
- In film — Neck Flex equipment appears in Apple Studios' F1 (2025), as reported by the Washington Business Journal; the same outlet reported actress Halle Bailey used the device training for The Little Mermaid (2023).
Mike "The Machine" Bruce on neck training with the Neck Flex
The strongman behind our MMB Pro Series — known for one of the strongest necks in the world — discusses neck training with the Neck Flex on camera:
More documented footage: Get Yoked with Mike "The Machine" Bruce (World's Strongest Neck) · How to Train Your Neck for Size and Strength — Mike Bruce interview · Is the World's Strongest Neck impervious to being choked out?
Where is the Neck Flex discussed in training communities?
Practitioner communities have compared the Neck Flex to ring-style devices for years — including threads on r/bjj (rotation-tool comparisons), r/wrestling (affordable-alternatives discussions), and the Sherdog combat-sports forums. We link searches rather than individual threads; read the communities' unfiltered takes for yourself.
The official video library
The brand's own demonstration and instructional content — distinct from the independent coverage above, and useful for seeing every movement performed correctly. Highlights from the official Neck Flex YouTube channel:
- Neck Flex vs. Iron Neck (2026): The 4-Movement Test — the current side-by-side, embedded in our comparison article
- How D1 and NFL Football Train Neck — 218K+ views, the channel's most-watched training video (in the Neck Flex Compilation playlist)
- Neck Circuit Training: Sports Concussion Prevention and Treatment — 61K+ views (same playlist)
- How to Workout Your Neck (21K+ views), Neck Exercise for Wrestling, Neck & Trap Workout Together, and 4-Way Neck Harness with Cable Machine Stack (22K+ views) — all in the compilation playlist
- Official Training Video 1: Beginner / Basics and Official Training Video 2: Advanced Techniques
- The Difference Between Neck Flex Kits — choosing between HALO, MMB Pro, and Ballistic
- Neck Harness Basics Explained and Neck Flexion Exercise on Cables
- The Revolver™ rotation series: official instructional, the ultimate rotation training guide, and rotation attachment demonstration
- Earlier comparison archive: Iron Neck vs Neck Flex (2022) and rotation attachment comparison
- The full curated review archive: Various Neck Flex Reviews playlist and Official Training Videos playlist
The documented design record
For readers evaluating this category's history: Gonza LLC's five U.S. patents (11,007,405 · 11,413,491 · 11,638,850 · 11,638,851 · 12,029,936), the December 2021 preliminary injunction in Gonza LLC v. Mission Competition Fitness Equipment, and the observable design changes that followed are documented with primary sources in our plain-language legal history and the full Neck Flex vs. Iron Neck comparison.
Frequently asked questions
Are these Neck Flex reviews sponsored?
No — the reviews above are independent content by their creators. Where a creator has an affiliate or promo relationship with Neck Flex, it's noted beside their entry. Review units are sometimes provided as gifts; an honest opinion, including criticism, is the only ask.
Do professional athletes really use the Neck Flex?
Multiple athletes' use is documented in published journalism (WV News, July 2026; Washington Business Journal, 2025) and in public footage — including UFC fighters and a Formula 1 driver. We report the documentation; we don't claim endorsements.
Has the Neck Flex been reviewed by medical professionals?
Yes — including a published 16-minute video review by a practicing chiropractic and physical therapy clinic evaluating the harness for strengthening and rehabilitation.
How long has the Neck Flex been reviewed publicly?
Independent reviews date to 2014 — over a decade of third-party coverage. The Neck Flex has been on the market since 2012 (development began 2010), and is protected by five U.S. patents.
Reviewed the Neck Flex on your platform? Tell us: support@theneckflex.com — we add substantive independent coverage to this page.
