When it came to testing our latest iPhone protectors, we didn’t just use our F-crew as lab rats. We also enlisted the help of a specialist product testing lab – so we could find out what our CASES are really made of! Read on to find out whether they survived...

Facts and Features

Our new iPhone protectors are made from a flexible, thermoplastic polyurethane (TPU) shell with a hard polycarbonate core.

  • The raised beveled edges protect your screen from those pesky scratches.
  • We’ve done away with the magnets and metal plates, so you can charge your device wirelessly while it sits comfortably in its CASE.
  • Each CASE is personalized with recycled truck tarp, so you’ll recognize your phone instantly. Who even needs Face ID?

They are available for the following models: F341 CASE FOR iPHONE 8/7F342 CASE FOR iPHONE XR and F343 CASE FOR iPHONE XS/X.


Just like all new F-models, our F-crew subjected these new protectors to a number of tests, taking their iPhones from the office, tarp washing room and shop floor out to the bar, climbing wall, kids’ room and back again. They were thrown into snowboarders’ pockets as they slid down snowy slopes during long weekends away, and were even hurled across Zurich’s Limmatplatz. (That only happened once, though.)


Our official name is FREITAG lab. ag, though we don’t actually have a real lab with petri dishes. That’s why we asked a renowned Swiss product testing lab to test our iPhone protectors instead.

Our protective cases had to survive a barrage of tough tests. And it wasn’t just one thing after another, but two tests at a time: a cunning preliminary test and various follow-up tests, which were supposed to finish off our poor cases. 

Our CASES were subjected to a grueling temperature test: they were stored in temperatures ranging from -20°C to +60°C (-4°F to +140°F) five times for a period of 24 hours, before being dropped from a height of 100 cm a further five times onto an EN 71 standard impact plate. 

In order to test their “dry rubbing fastness”, our CASES were placed under a xenon light for 200 hours (equivalent to sitting under the blazing sun for an entire European summer), and were then rubbed against a cotton test fabric exactly 100 times. 

And sometime in between all this fun, the lab technician ran over the CASE a few times, too. (And with Anna’s private iPhone as the test subject...)


From the F-crew tests

  • All CASES are in good health and are well-loved by everyone.
  • Traces of the stunt on Zurich’s hard tarmac can be found on Daniel’s iPhone screen, however – so an additional tempered glass screen protector is a recommended addition to any CASE, for next level protection.

From the lab

  • Our CASES survived the classic oops-I-dropped-my-iPhone-while-walking height of one meter. In fact, they passed with flying colors, surviving five drops onto a metal plate and five drops onto rough tarmac. One unlucky fall meant the screen protector on the test iPhone cracked. We recommend: install a tempered glass screen protector.
  • Put the CASE in a petri dish of sweat solution, leave for 200 hours under a xenon light and it’ll begin to deform.
    We recommend: hands off the solution!
  • The lab results are in, and our cases tested positive – for success! Yay!

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