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| Faraday Fabrics | Standard Fabrics* | |
|---|---|---|
| Designed to reduce wireless signals | ✓ | ✗ |
| Includes conductive fibers or coatings | ✓ | ✗ |
| Can be used in clothing | ✓ | ✓ |
| Reusable material | ✓ | ✓ |
| No batteries or charging needed | ✓ | ✓ |
“Standard fabrics” means ordinary cotton or polyester without added conductive fibers or coatings.
Faraday is owned and operated by our family, with a focus on conductive fabrics and everyday essentials. Thank you for supporting the family behind our brand.
Faraday is based in the suburbs of Chicago, Illinois, USA. We’re proud to call this community home as we build a brand that brings conductive materials into familiar, everyday designs.
Not all Faraday fabric works the same
Faraday fabrics reduce signals by different amounts because their materials, weave, and number of layers affect performance. [19, 22, 25] In one study, increasing the amount of copper or silver coating improved shielding in the fabrics tested. [25] Washing can also change how well a fabric works, while protective coatings can help some fabrics keep their shielding ability through repeated cleaning. [13, 17]
For illustration only: screen indicators show signal reduction through Faraday fabric, not actual measurements.
What is Faraday fabric?
Faraday fabric reduces radiofrequency (RF) transmission through reflection and absorption: some energy reflects off its conductive surface, while some entering the material is dissipated as heat, leaving less to pass through. [14, 21] Shielding is measured in decibels (dB); a 30 dB result means transmitted power is one-thousandth of the unshielded value under the test conditions. [12]
Conductivity, thickness, frequency, and openings determine performance. [19, 21] Greater conductivity and additional conductive layers can improve shielding, while gaps and poorly connected seams can weaken it. [19, 21, 22] Frequency affects penetration into the conductor and leakage through openings; RF shielding results also cannot establish effectiveness against low-frequency magnetic fields. [21, 23]
Research has demonstrated flexible, breathable shielding textiles, with improvements achieved through conductive coatings and layered designs. [14, 15, 22, 24] NIST’s guidance emphasizes that seams and leakage can compromise signal isolation, so laboratory fabric measurements alone cannot establish how a finished garment or cover will perform. [18, 20]
Wireless signals are all around us
Phones, Wi-Fi routers and Bluetooth devices use radiofrequency (RF) waves for calls, internet access and wireless connections. [1, 2, 3] RF is non-ionizing, meaning it lacks the energy to damage DNA directly in the way X-rays can. [1] Exposure varies with transmitting power, distance and use; sufficiently high levels can damage tissue through heating, but typical environmental levels are too low to cause significant heating. [4]
Some findings warrant continued investigation: in 2011, IARC classified RF fields as “possibly carcinogenic,” reflecting limited evidence rather than an established cause of cancer in humans. [5] U.S. National Toxicology Program experiments linked high, whole-body RF exposure to tumors in male rats, and a later animal review also found evidence of increased brain and heart tumors. [6, 7] Applying these findings to everyday human exposure remains difficult, and ARPANSA disputes the animal review’s methods and interpretation. [6, 7, 8]
Human research has been more reassuring: a 2024 WHO-commissioned review and the large COSMOS study found no association between mobile phone use and the brain tumors investigated. [9, 10] The UK Health Security Agency also reports no consistent evidence that Wi-Fi exposure harms the general population’s health. [2] Research is substantial, with remaining gaps involving very long term exposure, children’s lifetime use, accurate exposure measurement and wearable devices. [1, 3]
What is Faraday fabric?
“Faraday fabric” is a broad name for conductive textiles designed to reduce radiofrequency (RF) signal transmission, rather than one specific material. [11, 12] These fabrics may contain stainless-steel threads or coatings of copper, nickel, or silver; researchers also use conductive polymers and carbon materials. [12, 13, 14, 15]
Their practical appeal is combining shielding with the lightness and flexibility of fabric. [11] Laboratory studies have developed breathable shielding textiles and specially treated silver- and copper-based fabrics that retained shielding after repeated washing. [14, 16, 17]
Shielding effectiveness is measured in decibels (dB), with results depending on signal frequency, conductivity, and fabric construction. [12, 18, 19] NIST describes shielded containers used to isolate mobile devices during forensic investigations, while emphasizing that seams and leakage can compromise performance. [20] A fabric’s laboratory results therefore cannot, by themselves, establish how a finished garment or cover will perform. [18, 20]
1. National Cancer Institute: Cell Phones and Cancer Risk.
2. UK Health Security Agency: Wi-Fi Radio Waves and Health.
3. ARPANSA: Wearable Devices.
4. ARPANSA: Radiofrequency Radiation.
5. IARC (2011): RF Classification as Possibly Carcinogenic.
6. National Toxicology Program: Cell Phone RF Studies.
7. Mevissen et al. (2025): Animal Cancer Review, with its 2026 correction.
8. ARPANSA (2025): Assessment of the Animal Review.
9. Karipidis et al. (2024): Human Cancer Studies Review.
10. Feychting et al. (2024): COSMOS Study.
11. Drexel University (2020). Faraday fabric and conductive coatings.
12. Palanisamy et al. (2021), Polymers. Copper/nickel-coated shielding fabrics.
13. Pušić et al. (2022), Polymers. Stainless-steel-thread fabrics and washing.
14. Wang et al. (2026), RSC Advances. Durable, breathable silver-coated shielding textiles.
15. Lan et al. (2021), Journal of Colloid and Interface Science. Graphene oxide and polypyrrole shielding coatings. PubMed record.
16. Jia et al. (2019), Advanced Materials Technologies. Conductive, machine-washable shielding textiles.
17. Hu et al. (2023), Textile Research Journal. Washable, breathable copper-coated fabrics.
18. ASTM International. D4935: Measuring shielding effectiveness.
19. Neruda and Vojtech (2018), Materials. Conductivity, construction, and textile shielding.
20. NIST (2014). Guidelines on Mobile Device Forensics.
21. NASA (1997): Shielding design guidelines.
22. Hu et al. (2021): Multilayer shielding and air permeability.
23. NIST—Donley et al. (2007): Magnetic shielding research.
24. Uzun et al. (2021): MXene-coated shielding fabrics.
25. Ali et al. (2018): Comparative performance of copper- and silver-coated fabrics.
26. IEEE 2715-2023: Guide to measuring shielding effectiveness of flat materials.
