01
The front-pocket problem.
Phones are often carried directly against the body. The S05 silver-blend panel is designed to sit between the device and the wearer across the covered area, using a flexible knit that keeps the garment wearable.
EMF Boxer Briefs (S05)
A close-fitting silver-blend base layer for everyday phone-side shielding.
Waitlist access
Prototype fit: close technical fit. Final grading confirmed at bulk production.
- S05 textile system with 40-50 dB (declared material value).
- Silver textile construction selected for the intended use case.
- Pre-launch candidate pending independent EU lab testing before preorder opening.
Close-fitting boxer briefs built from Zanthera's S05 silver blend for targeted daily shielding comfort.
Every pre-launch Zanthera product keeps material performance, garment coverage, and final lab verification separate so the product page stays useful without overstating real-world exposure reduction.
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Size
Colour: silver grey
Textile system
S05
Declared material attenuation
40-50 dB (declared material value)
Launch status
Waitlist open
Lab status
EU testing pending
Technical details
Built as a measurable textile system.
- Textile system
- S05
- Composition
- 47% silver fiber / 48% cotton / 5% spandex (declared; final ratios per ISO 1833).
- Weight
- Approx. 92 g/m² silver-blend knit
- Attenuation
- 40-50 dB (declared material value)
- Construction
- Single-layer stretch knit with silver fiber distributed through the textile.
- Care
- Machine wash max 30°C, gentle cycle, inside out. Mild, pH-neutral detergent only. NO bleach, NO fabric softener, NO tumble drying, NO dry cleaning. Iron on low heat on the outer layer only; never iron the silver side. Air dry flat, away from direct sunlight.
- Manufacturer / EU responsible person
- Zanthera Lab AB, org.nr 559585-5296, Kungsgatan 9, 111 43 Stockholm, Sweden. info@zanthera-lab.com
Compliance & safety
Restricted-substance checked. Claim-safe by design.
Nickel-Safe
Guaranteed free of nickel-copper alloys (REACH Entry 27 compliant).
Restricted-Substance Tested
Silver fiber reviewed through EU lab testing against restricted substances.
Manufacturer / EU responsible person
Zanthera Lab AB, org.nr 559585-5296, Kungsgatan 9, 111 43 Stockholm, Sweden, info@zanthera-lab.com.
Attenuation
Frequency response by signal family.
| Signal family | Frequency | Attenuation |
|---|---|---|
| GSM / 3G / 4G | 0.9 - 1.9 GHz | 40-50 dB (declared material value) |
| Wi-Fi | 2.4 GHz | 40-50 dB (declared material value) |
| Wi-Fi 5 GHz / 5G Sub-6 | 5 GHz / Sub-6 | 40-50 dB (declared material value) |
Declared material specs. Pending final independent EU lab testing.
EN: This product is not personal protective equipment (PPE) and has no medical properties. Attenuation values refer to the shielding fabric measured under laboratory conditions; actual exposure reduction depends on garment coverage and fit.
SV: Produkten är inte personlig skyddsutrustning och har inga medicinska egenskaper. Angivna dämpningsvärden avser tyget under laboratorieförhållanden; faktisk exponeringsminskning beror på plaggets täckning och passform.
02
A textile, not a promise.
The declared attenuation belongs to the fabric under laboratory conditions. Coverage, fit, garment movement, and device position all affect real-world exposure reduction.
Product information
Everything important stays visible before preorder.
Materials+
47% silver fiber / 48% cotton / 5% spandex (declared; final ratios per ISO 1833).
Size and fit+
Prototype fit: close technical fit. Final grading confirmed at bulk production.
Care+
Machine wash max 30°C, gentle cycle, inside out. Mild, pH-neutral detergent only. NO bleach, NO fabric softener, NO tumble drying, NO dry cleaning. Iron on low heat on the outer layer only; never iron the silver side. Air dry flat, away from direct sunlight.
Testing status+
Declared attenuation is a material value. Final independent EU lab testing is required before preorder access opens.
Full specification+
Textile system: S05 Composition: 47% silver fiber / 48% cotton / 5% spandex (declared; final ratios per ISO 1833). Weight: Approx. 92 g/m² silver-blend knit Attenuation: 40-50 dB (declared material value) Construction: Single-layer stretch knit with silver fiber distributed through the textile. Care: Machine wash max 30°C, gentle cycle, inside out. Mild, pH-neutral detergent only. NO bleach, NO fabric softener, NO tumble drying, NO dry cleaning. Iron on low heat on the outer layer only; never iron the silver side. Air dry flat, away from direct sunlight. Manufacturer / EU responsible person: Zanthera Lab AB, org.nr 559585-5296, Kungsgatan 9, 111 43 Stockholm, Sweden. info@zanthera-lab.com
Scientific proof
Reports stay attached to the product story.
EU attenuation lab testPending
EU textile reference reviewAvailable
EU restricted-substance screeningPass
Pairs well with
Complete the shielding system.
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Waitlist members get 48-hour early access and the launch-day EU lab testing summary.