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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.
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EMF Boxer Briefs (S05)
A close-fitting silver-blend base layer for everyday phone-side shielding.
Waitlist access
Colour: silver grey
Size
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.
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.
- 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.
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.
Attenuation
Frequency response by signal family.
| Signal family | Frequency | Attenuation |
|---|---|---|
| GSM / 3G / 4G | 0.9 - 1.9 GHz | 40-50 dB |
| Wi-Fi | 2.4 GHz | 40-50 dB |
| Wi-Fi 5 GHz / 5G Sub-6 | 5 GHz / Sub-6 | 40-50 dB |
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.
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. 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.
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.