Neck Flex® MMB Pro Bundle — at a glance
- What it is: the MMB Pro Series Kit and the Revolver™ Rotation Kit shipped together in one parcel.
- In the box: MMB Pro harness, Revolver™ rotation attachment, heavy-duty weight-lifting chain and carabiners, Bodylastics® 19 lb resistance band, Bodylastics® door anchor, Neck Flex tote bag, sticker, and instructional videos.
- Trains: neck flexion, extension, lateral flexion and loaded rotation — every plane the neck moves in.
- Loading: resistance bands, weight plates on the included chain, or a cable stack.
- Evidence: the Neck Flex is the head harness named in three peer-reviewed papers from a Royal Danish Air Force randomized controlled trial (BMC Musculoskeletal Disorders 2015 and 2017; Frontiers in Public Health 2020). In 2021 a federal court granted a preliminary injunction after finding a competitor's harness matched the Neck Flex "apparently even down to the stitching pattern." Full evidence profile · Neck Flex vs. Iron Neck.
- Made by: Gonza LLC, Leesburg, Virginia. Designed and engineered in the United States. Sold since 2012. Five U.S. patents.
This bundle includes both the MMB Pro Series Harness Kit & The Revolver™ Rotation Kit.
All items are bundled together into a singular parcel, which saves you money on shipping costs.
The Neck Flex® MMB Pro Series Bundle is an elite-tier, comprehensive cervical training platform that pairs the multi-patented MMB Pro Head Harness (designed with neck expert Mr. Mike Bruce) with the revolutionary Revolver™ Rotation Attachment. By combining progressive heavy plate-loading, resistance band integration, and friction-free mechanical rotation, this bundle offers the ultimate 360-degree neck conditioning system on the market.
Advanced Biomechanical Architecture
This bundle is engineered to resolve the critical flaws found in competitor products, such as the Iron Neck Alpha Harness. While inferior alternative designs feature flat, horizontally oriented D-rings that slip and ride up during use, the MMB Pro Bundle provides an optimal training experience:
- True Lateral Training: Vertical "dog-ear" side D-rings maintain an anatomically correct line of pull for perfect lateral (side) neck flexion without strap slippage.
- Front Power Strap: Locks the harness securely to the head, preventing the unit from shifting or riding up into the eyes during heavy forward flexion or rotation.
- Frictionless 360° Rotation: The inclusion of the Revolver™ Swivel Bearing unlocks smooth rotational movement under heavy load, safely simulating the mechanics of multi-thousand-dollar gym machines.
Who it is for
- Concussion Prevention & High-Impact Sports: Maximizes dynamic neck stiffness to absorb and dissipate high-velocity rotational acceleration forces in football, MMA, BJJ, wrestling, and lacrosse.
- Clinical Rehabilitation & Posture Correction: Utilized by physical therapists and chiropractors for non-axial, controlled joint mobilization to treat whiplash and reverse forward-head posture ("Tech Neck").
- Hypertrophy & Extreme Athletics: Enables heavy plate loading to target the sternocleidomastoid and splenius capitis muscles for a thicker, more powerful, and protective neck profile.
What is Included in the MMB Pro Bundle
- The Patented MMB Pro Head Harness (with premium diamond-embossed neoprene padding).
- The Revolver™ Rotation Attachment (heavy-duty polished steel swivel).
- Heavy-Duty Weight Lifting Chain & Carabiners (for plate loading).
- Bodylastics® Patented 19 lb Resistance Band (with snap-reduction safety cord).
- Bodylastics® Door Anchor & Industrial Neck Flex Gym Tote Bag.
