Estimated concussions since you’ve landed — unprotected by G8RSkin
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Estimated concussions since you’ve landed — unprotected by G8RSkin
SCIENCE & TESTING

Innovation That Stands Up to Impact

Tested. Evolved. Ready for the game.

How We Made the G8RSkin

The G8RSkinTM was developed using agile methodology, emphasizing a continuous cycle of testing, learning, and iterating. Extensive testing across multiple independent helmet labs and a multisport pilot program led to numerous design improvements. These enhancements, informed by athlete feedback and expert advice, ensured optimal protection and wearability. The final design was validated through rigorous testing at the Southern Impact Research Center (SIRC)* and field tests during Spring football, ahead of its May 2024 launch.
*This does not represent an endorsement of G8RTech or its products on part of Southern Impact Research Center, an ISO 17025 certified independent lab. The above statement merely notes the location of testing and laboratory that produced a series of accelerometer and HARM values. All calculations and metrics were carried out by G8RTech based of the values produced, but these calculations and any accompanying claims do not represent the work or endorsement of Southern Impact Research Center.

Impact-Absorbing Polymer: Your New Safety Layer 

The G8RSkin products are designed to dissipate the energy of impacts and in doing so reduce the forces and accelerations experienced by the head during collisions. After a helmet bears the brunt of a collision and spreads the impact energy over an increased surface area, the G8RSkin receives the remaining impact energy in a less localized collision. The G8RSkin temporarily hardens upon impact, dissipating the energy in the process, before returning to its pliable and flexible state before the athlete can even feel the difference. The G8RSkin maximizes this dissipation effect using proprietary materials and designs that allow it to maximize the effected surface area and take full advantage of its protective materials. As a result, the G8RSkin reduces the acceleration of the head as compared to the helmet alone, which is linked to reducing the risk of concussion and CTE.

Heat Mitigation Testing

Testing found that wearing the G8RSkin Lux under a football helmet improves thermoregulation and comfort. Athletes wearing G8RSkin Lux experienced a reduction in core temperature change, skin temperature change, and heart rate change compared to wearing a helmet alone.* Read the full study here

*Results derived from testing in controlled laboratory conditions and not live, on-field sports conditions

G8RSkin Shiesty  Compared to Guardian Caps

* Source: https://nocsae.org/certification-to-nocsae-standards-and-add-on-helmet-products-2/ 
** Source: https://ptproductsonline.com/neurological/brain-injury/nfl-testing-validates-benefit-of-guardian-cap-on-helmets/ 
*** Source: https://scopeblog.stanford.edu/2023/03/28/padded-helmet-cover-shows-little-protection-for-football-players/

Demonstrated to provide better protection from collisions compared to helmets alone*

*As shown by laboratory testing done at an independent laboratory and not live, real world conditions.

What the Data Tells Us

For the side upper location at the highest speed hit, if 1,000 athletes took a hit of this nature, 85 athletes may experience a concussion not wearing the G8RSkin™ Shiesty, where only 17 athletes may experience a concussion for the same hit if they were wearing a G8RSkin™ Shiesty; a relative concussion risk reduction of 79.08%

For the facemask side location at the medium speed hit, if 1,000 athletes took a hit of this nature, 14 athletes may experience a concussion not wearing the G8RSkin™ Shiesty, where only 3 athletes may experience a concussion for the same hit if they were wearing a G8RSkin™ Shiesty; a relative concussion risk reduction of 82.19%

Testing Protocol and Metrics

The Shiesty was evaluated using two different performance metrics. First, is the Combined Probability of Concussion metric (or concussion risk) developed by the Virginia Tech Helmet Lab and utilized within their STAR METHODOLOGY. This metric utilizes the resultant peak linear and rotational acceleration values from each collision to assess the concussion risk for any given hit. The above graphs and results demonstrate the concussion risk values by location averaged across the three speeds tested while also showing the relative concussion risk reduction at each location.
Second, is the HARM metric utilized by the NFL and Biocore for evaluating impacts to the head (see protocol here). HARM stands for Head Acceleration Response Metric and represents the combination of the HIC (a metric based on the linear accelerations during impact) and DAMAGE (a metric based on the rotational accelerations during impact). The G8RSkin Shiesty had up to a 36.5% reduction in the HARM value.

Testing Location Definitions

Emulating Hit To The Top Side Of Head

Emulating Hit To Jaw Bone

Emulating Hit To The Forehead

Emulating Hit To The Back Of The Head Or Falling And Hitting Back Of Head

Emulating Hit To The Side Of Head

Endorsed By Sports Experts

As a dedicated team doctor responsible for athlete safety, I’m proud to recommend G8RSkin. Its proprietary solution marks a key advancement in reducing concussion risk and aligns with my role on G8RTech’s Medical Advisory Committee. Tested at the Southern Impact Research Center, G8RSkin redistributes impact energy and minimizes rotational forces linked to concussions. With years of experience treating head injuries, I see it as a proactive step toward protecting athletes’ well-being and career longevity.
Dr. Charles Popkin
Team Physician, USA Hockey Member of the G8RTech Medical Advisory Committee

Endorsed By Sports Experts

G8RSkin™ was built on the latest scientific insights and engineering, representing a major step in mitigating concussion risk. As a medical professional focused on head injuries, I’m impressed by the thoughtful design and attention to detail the G8RTech team brought to this product. Their goals align with my mission to protect athletes’ brain health from the earliest stages of their careers.
Dr. Audrey Paul
Pediatrics and Pediatric Emergency Medicine Member of the G8RTech Medical Advisory Committee

Endorsed By Sports Experts

Over my extensive career, I’ve seen equipment evolve to enhance player safety, and G8RSkin is a game-changer in reducing concussion frequency and severity. I strongly recommend incorporating it into athletes’ gear to proactively foster a safer playing environment. G8RTech’s innovative approach and use of state-of-the-art materials reflect a deep understanding of impact biomechanics and align perfectly with my mission to protect athletes from injury.
Jay Brunetti
Director, Equipment Operations San Francisco 49ers Member of the G8RTech Advisory Board

Endorsed By Sports Experts

Through my experience providing medical care for teams across several different sports, I have seen a dire need for new advancements in concussion prevention. G8RTech’s products are leading the way in the fight to reduce the risk of concussions and other sports-related injuries substantially. I am quite honored to play a role in their efforts.
Dr. Andrew Saleh
Head Medical Team Physician for San Diego Loyal, Gulls & Legion Member of the G8RTech Medical Advisory Committee

Endorsed By Sports Experts

There is a need to not only raise awareness of the sequelae of concussions (hormonal shifts included), but to start by reducing concussions themselves. There is great value in pairing a strong evidence-based approach with addressing unmet needs of athletes.

Dr. Tamara Wexler

MD, PhD Member of the G8RTech Medical Advisory Committee

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• Do not expose G8RSkin™ Shiesty to temperatures above 120°F or below -25°F

• G8RSkin™ Shiesty can be machine washed in cold water only using mild detergent without bleach

• G8RSkin™ Shiesty must be air dried or tumble dried on low heat (do not exceed 120°F )

• G8RSkin™ Shiesty must fit snugly over the head and around the neck

• G8RSkin™ Shiesty is not a substitute for and must not replace protective gear associated with the sport for which it is being worn

• The pocket for the gel packet insert is inside the G8RSkin™ Shiesty at the base of the back of the neck. Place gel packet in pocket to activate cooling/heating feature

G8RTech™, Inc (“G8RTech”), warrants that the G8RSkin™ Shiesty, when used, handled, maintained, and worn strictly in accordance with all use and care instructions, will be substantially free from defects in material and workmanship for a period of twelve months from the purchase date. Products returned to G8RTech and confirmed by us to be defective during the limited warranty period will be repaired, replaced, or refunded at G8RTech’s option. THIS STATES G8RTECH’S SOLE OBLIGATION, AND THE USER’S EXCLUSIVE REMEDY RELATED TO THE G8RSKIN™ SHIESTY. THIS REMEDY IS NOT AVAILABLE FOR LOSS OR DAMAGE CAUSED BY ALTERATION, MISUSE, MISHANDLING, OR ACCIDENT. G8RTECH DOES NOT WARRANT OR GIVE ANY ASSURANCES THAT THE G8RSKIN™ SHIESTY WILL PROTECT AGAINST ALL OR ANY INJURIES, OR WILL DIMINISH THE TYPE OR SEVERITY OF INJURIES BY ANY DEGREE. EXCEPT FOR THE LIMITED WARRANTY DESCRIBED ABOVE, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, G8RTECH EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. EXCEPT FOR THE EXCLUSIVE REMEDY ABOVE, AND EXCEPT TO THE EXTENT PROHIBITED BY LAW, G8RTECH IS NOT LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE FROM OR RELATE TO ITS PRODUCTS, REGARDLESS OF THE LEGAL OR EQUITABLE THEORY ASSERTED, INCLUDING, BUT NOT LIMITED TO, WARRANTY, CONTRACT, NEGLIGENCE, FRAUD, STRICT LIABILITY. The information regarding the G8RSkin™ Shiesty’s protective benefits represent data obtained from third party laboratory testing, and not from field testing of the final product on actual users. This information does not give assurance of any level of performance, protection, or benefit offered by the G8RSkin™ Shiesty. G8RTech does not represent or warrant that the information is complete, accurate, or current, and reserves the right to delete, update, and modify such information at any time without prior notice.

This includes proper wearing of the correct size of G8RSkin™ Shiesty on the head and neck, washing the G8RSkin™ Shiesty in cold water only using a mild detergent without bleach, and air drying or tumble drying on low heat.

To maximize the benefits of the G8RSkin™ Shiesty, proper fit and care of the G8RSkin™ Shiesty in combination with other standard protective gear are essential. This includes proper wearing of the correct size of G8RSkin™ Shiesty on the head and neck, washing the G8RSkin™ Shiesty in cold water only using a mild detergent without bleach, and air dried. Do not expose the G8RSkin™ Shiesty to temperatures above 120°F or below -25°F. Users are advised to read and follow all of the other important instructions contained with the product and on the website. Warning: failure to abide by the instructions provided with the G8RSkin™ Shiesty and on the website could reduce the performance of the product and void the limited product warranty.

Copyright © 2025 G8RTech, Inc. All Rights Reserved.
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