Guardian Cap - Impact Reduction for American Football (One Size Fits All)
Level up protection in practice while preserving your game helmet. The Guardian Cap adds a flexible, energy-absorbing outer layer to your football helmet to reduce and redirect impact forces, help manage rotational energy, dampen noise and vibration, and cut radiant heat from sun exposure—without altering the helmet itself.
Key Benefits
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Lightweight: all versions weigh under 1 lb for minimal feel and maximum mobility.
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Up to 40% HARM reduction: complements your helmet to improve total system energy attenuation.*
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Redirects rotational forces: segmented exterior helps manage torsional impacts.
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Cooler helmet: reduces radiant heat from sunlight by up to 20°.
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Quieter contact: dampens sound waves and vibrations, softening the loud “crack.”
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Preserves your helmet: protects paint, decals, and flex panels for game-day looks.
Features
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One Size Fits All: universal fit for youth/adult football and lacrosse helmets.
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Fast install: attaches to itself with straps, snaps, and hook-and-loop; does not modify the helmet.
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All-around padding: cushions incidental contact from knees, hands, abdomen during run and position drills.
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Durable foam panels: weather-resistant and easy to wipe clean.
Since the 2022 season, the NFL has mandated Guardian Caps during contact practices (preseason, regular season, playoffs) for certain positions including OL, DL, LB, DB, TE, RB, FB, WR. Players may also choose to wear Guardian Caps in games, subject to league rules.
Specs
| Fit |
One Size (youth & adult helmets) |
| Weight |
Under 1 lb |
| Attachment |
Straps, snaps & hook-and-loop (to itself) |
| Performance |
Up to 40% HARM reduction* |
| Thermal |
Reduces radiant heat up to 20° |
| Noise/Vibration |
Dampening effect |
Use & Care
- Ideal for pre-season & in-season practices, walk-throughs, and contact drills.
- Wipe clean with a damp cloth; air dry. Avoid harsh chemicals and high heat.
What’s Included
1 × Guardian Cap (helmet not included).
*Based on independent testing and manufacturer data; effectiveness varies by impact scenario. Guardian Cap is an add-on layer to an approved helmet and does not eliminate risk.
Scope of delivery: 1 piece (helmet and face mask are for illustration purposes only)
FAQ Guardian Cap Helmet Cover – Impact Reduction for American Football
Does the cap change my helmet’s fit?
No. It attaches to itself using straps, snaps, and hook-and-loop, and does not interfere with the helmet structure.
How much impact reduction does it provide?
Independent testing and manufacturer data report up to 40% HARM reduction. Actual results may vary by impact scenario.
Is the Guardian Cap a replacement for a helmet?
No. It’s an add-on layer to an approved helmet and does not eliminate risk entirely.
Can I wear it in games?
Rules vary. In the NFL, Guardian Caps are mandated for certain positions during contact practices and may be worn in games. Always follow your league/association’s rules.
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