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FLEX Chinstrap

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First-ever safety chinstrap, incorporating hydraulic technology

Designed to enhance player protection, this innovative chinstrap incorporates advanced impact-absorbing technology, setting a new standard in helmet safety. 

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tested & proven by peer-reviewed science

Approximately 50% of impacts occur to the facemask, an area where traditional helmets underperform in reducing force transmission. The FLEX Chinstrap is engineered for superior impact absorption and facemask-to-facemask injury reduction- and has been proven to mitigate dangerous forces more effectively than all other chinstraps.


In a 2026 study, the Guardian FLEX SoftShox Chinstrap delivered the lowest Head Acceleration Response Metric (HARM) scores of any chinstrap tested - a 35% reduction at low impact velocity and 31% reduction at high impact velocity.

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the best performing chinstrap in the market

Backed by peer-reviewed science in a 2026 study, published by the Biomedical Engineering Society. FLEX was the only chinstrap to significantly outperform every other chinstrap at high and low velocity speeds.

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What researchers & coaches say.

As a neurosurgeon who treats athletes following a concussion, it is so exciting to see the impact of this innovative liquid shock technology on the athlete to make the sport safer.

Gerald Grant, MD

SoftShox Co-Founder

Approximately 50% of impacts in football are to a player’s facemask, where helmet innovation has lacked for decades.

Bailey et al., 2021

Great fit, no issues, and more confidence of protection while taking hits.

Head Coach, Bartlett High School

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