Selective protection
Targeted shielding of the most radiosensitive tissues (bone marrow, breast, ovaries, stomach, lungs, colon) instead of full-body coverage. Maximum protection, minimum mass.
Aviation health · Pre-launch
Radiation protection
for the people who
fly the world.
Flight crews are the most radiation-exposed occupational group on Earth, yet no wearable protection exists for them. Cosmivex is building it: lightweight, daily-wear shielding designed for the people who fly the world.
300k+
Cabin crew worldwide today
878k
New cabin crew projected by 2040 (Boeing)
~$975M
Radiation-protection apparel market by 2027
0
Wearable products built for aviation crew
01 · The invisible occupational hazard
An exposure no one is measuring at the individual level.
At cruising altitude, the atmosphere thins and cosmic radiation rises. A long-haul polar route exposes crew to 5–8 µSv per hour, and a typical cabin crew member logs 800–1,000 flight hours a year.
In May 2024, the Gannon solar storm dosed a single San Francisco–Paris flight with the equivalent of four chest X-rays. Solar Cycle 25 is at its peak. Polar routes keep expanding. The exposure is rising, and the tools haven't caught up.
- Cancer risk: elevated incidence of breast cancer, melanoma, and skin cancers in flight crews.
- Reproductive health: FAA studies show measurable risks for children of female crew with 5+ years of pre-conception flying.
- DNA damage: high-energy particles cause double-strand breaks at altitude.
02 · Why now
A regulatory and scientific window is opening.
2024
U.S. Congressional mandate requiring a new FAA study on aircrew radiation protection.
EU
EURATOM 96/29 mandates exposure assessment above 1 mSv/year and active management above 6.
UK
Air Navigation (Cosmic Radiation) Order 2019. Records held for 75 years.
2025
Solar Cycle 25 peak. Measurably elevated cosmic ray flux on polar corridors.
03 · Our approach
Selective shielding, engineered for the people who actually wear it.
Right physics, right material
Cosmic radiation isn't medical X-ray. We use low-Z, hydrogen-rich composites (the same family of materials proven on the ISS and Artemis I) instead of lead. They're effective against protons and neutrons, and a fraction of the weight.
Designed for daily wear
A garment a crew member will actually put on every shift. Discreet under uniform, breathable, machine-launderable, and built to last the lifecycle of an aviation career.
How today's tools fall short
| Existing solution | Used by | Key gap |
|---|---|---|
| Lead aprons (medical) | Hospitals, dental | Wrong physics for cosmic radiation; far too heavy for daily wear |
| Physical dosimeters | Some EU airlines | Measure exposure, don't reduce it |
| StemRad AstroRad | Astronauts (ISS, Artemis I) | Built for spaceflight; not priced or sized for aviation crew |
| Cosmivex | Cabin crew, pilots, frequent flyers | The first wearable shielding designed for aviation |
04 · On stage
Presenting at IAC 2026.
Antalya, Türkiye.
We're presenting a paper on aircrew cosmic-radiation exposure and the case for selective wearable shielding at the 77th International Astronautical Congress. If you'll be there, we'd love to meet.
Request the paper →EventIAC 2026
FormatTechnical paper
LocationAntalya, Türkiye
TrackAviation health & space-weather impact
05 · Research
Help shape the study.
We're conducting an independent study on how flight crews and frequent flyers experience and understand radiation exposure. Your input will directly inform the design of our shielding and the paper we present at IAC 2026.
Anonymous. No flight schedules collected. We'll only contact you with the final paper unless you opt in.
06 · Stay in the loop
Get the research when it's published.
Crews, safety officers, journalists, and curious frequent flyers. Leave your email and we'll send the paper, along with occasional updates on the project.
Or email us directly at hello@cosmivex.org.