EMF T-Shirt (S04/S01)
Waitlist access
Prototype fit: regular technical base layer. Final grading confirmed at bulk production.
The T-shirt is designed as a technical first layer: soft enough for daily wear, but built around a dedicated S04 silver shielding layer across the covered torso area.
Its declared attenuation belongs to the textile under laboratory conditions. Final product claims remain gated by independent EU testing, because fit, coverage, seams, and movement all matter in real use.
The construction pairs a pure silver inner shielding face with a cotton outer architecture so the garment feels familiar while the material system remains measurable.
Size
Colour: silver grey
Textile system
S04
Declared material attenuation
60-80 dB (declared material value)
Launch status
Waitlist open
Lab status
EU testing pending
Technical details
Compliance & safety
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
| Signal family | Frequency | Attenuation |
|---|---|---|
| GSM / 3G / 4G | 0.9 - 1.9 GHz | 60-80 dB (declared material value) |
| Wi-Fi | 2.4 GHz | 60-80 dB (declared material value) |
| Wi-Fi 5 GHz / 5G Sub-6 | 5 GHz / Sub-6 | 60-80 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.
01
The garment starts with the S04 silver textile system, then builds the T-shirt around it. The shielding value belongs to the covered material area, so the construction keeps the technical layer central rather than treating it as trim.
02
The inner shielding face uses 100% silver fiber (S04), while the outer architecture uses 100% cotton (S01). The result is a technical layer that reads like a familiar T-shirt, not a rigid panel.
03
A T-shirt covers one of the largest regular-wear areas on the body. That makes fit, drape, and repeat wear as important as the material value printed on a test sheet.
04
The pre-launch page separates declared textile attenuation from finished-product verification. Independent EU lab testing is the gate before preorder access opens.
Product information
Inner lining: 100% silver fiber (S04). Outer: 100% cotton (S01).
Prototype fit: regular technical base layer. Final grading confirmed at bulk production.
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.
Declared attenuation is a material value. Final independent EU lab testing is required before preorder access opens.
Textile system: S04 Composition: Inner lining: 100% silver fiber (S04). Outer: 100% cotton (S01). Weight: Approx. 70 g/m² shielding layer Attenuation: 60-80 dB (declared material value) Construction: Layered construction with silver shielding face and cotton comfort architecture. 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
Pairs well with
01 | 03
