Faraday Radiation Protection Baseball Cap

A regular black cotton baseball cap with a conductive silver-fiber lining. The lining attenuates radio-frequency (RF) signals passing through the fabric, which reduces RF exposure to the area the cap covers — the top and back of the head. It is not a medical device, and we don't promise any health outcome.

What It Is

• Outer: soft cotton
• Lining: silver fiber–nylon shielding fabric
• Fit: adjustable circumference 24–25.6 in, crown depth 4.72 in, visor 2.95 in
• Care: hand wash gently and air dry. Never bleach, and skip fabric softener — both damage the silver fiber.

What It Does — and Doesn't — Do

• It reduces RF reaching the covered area. It can't shield your face, neck, or anything the fabric doesn't cover.
• It works on radio-frequency sources such as Wi-Fi, Bluetooth and cellular. It is not a meaningful barrier to the low-frequency fields from household electrical wiring.
• How much it reduces depends on the source, the distance and the fit. For numbers in your own space, measure with an EMF meter with and without the cap.

Bulk Orders & Customization

Contact us for wholesale pricing or custom branding options. Standard shipping within the US is free.