If 2020 has taught us anything, it’s the importance of appreciating what we have and it is never too late to change our habits. Over the last few months, Cesium’s dedication to protecting not only mobile devices but the health of our customers AND of our planet has grown exponentially. That is why we can’t wait to introduce FERONIABIO to our brand portfolio.
Meet FERONIABIO

Over 1 billion phone cases are manufactured each year. Many of these plastic-based cases wind up in landfills or the ocean, taking thousands of years to break down. Made from bio-based, recycled, or reclaimed materials, FERONIABIO cases are changing the smartphone accessory game by introducing 100% compostable and biodegradable cases into the mix.
A reference to Feronia the Roman Goddess of wilderness, health and freedom, this brand is on a mission to save your phone and the planet, all while keeping YOU healthy as well. FERONIABIO cases are created with impacthane, a custom high-performance antimicrobial polymer. While protecting your phone from severe drops and impacts, this advanced technology also helps keep you protected by killing up to 99.99% of germs. These cases are also drop-proof from 1.5 meters (5 feet).
Cesium’s eco-friendly selection of FERONIABIO cases will include two product lineups:
- PURE: The world’s first eco-friendly case made of biobased and recycled/reclaimed aircraft canopies.

PURE (Clear/Black) 
TERRA (Blue) 
Eco-friendly Packaging
PURE cases are transparent with a black frame and will be available for iPhone 11, 11 Pro and 11 Pro Max. TERRA cases will be available in a variety of colors and for a variety of devices:
| Terra Case Availability | Blue | Black | Kaki | Natural |
| iPhone 11 | X | X | X | |
| iPhone 11 Pro | X | X | X | |
| iPhone 11 Pro Max | X | X | ||
| iPhone SE 2020/8/7/6s | X | X | X | |
| Samsung A21 / A51 / A71 | X | X | ||
| Google Pixel 4a | X | X |
Cases will also be available for the new iPhone and Google devices launching later this year.
Greener packaging is of course part of FERONIABIO’s 100% compostable and recyclable mandate as well. Made from compostable fibers, these cases are eco-friendly inside and out!
Buy a Case, Plant a Tree
It’s no secret that trees play a tremendous role in our daily lives, from providing us with clean air, to billions of jobs, to habitat for many forest creatures. Beyond the creation of 100% compostable and recyclable cases, FERONIABIO is committed to planting one tree for each case purchased in partnership with the organization One Tree Planted. Each tree absorbs CO2, produces oxygen, restores habitat, and offsets the carbon produced when manufacturing & shipping your case.
Learn more about this initiative: