FineWoven was terrible, and a leaker with a very mixed track record says that there is a new material that will replace it in iPhone 17 cases.

Serial — and questionable — Leaker Majin Bu is back. This time, with another iPhone 17 case with a new material to replace FineWoven.

The leaker says that the new synthetic fiber case is more "technical" whatever that means, and less "luxury."

Colors said to be arriving are blue, green, orange, and purple.

Four colored fabric panels in blue, purple, orange, and green are aligned side by side under a black bar.

Rumored Apple iPhone 17 case colors - image credit Majin Bu

The render on the page where the rumor is published looks nice, of course. The picture of the alleged case is less-so. It's not a picture-of-a-picture which can be common this time of year, but we have doubts about the image.

There's no precision on what appears to be a stamped Apple logo. Even FineWoven managed that.

This may be a cast-off from production because of it, but because of the leaker's reputation, we're skeptical that it's anything more than a photo edit of a case from another manufacturer.

This is also the first leak of a new material replacing FineWoven. When FineWoven was released, teases from the supply chain emerged in May and June for the first time, not about three weeks before the event.

Admittedly, cases are historically harder to hide from leakers. They're also easier to fake being from Apple.

As we've shared here, the post is backed up by Bu with a photograph of what is said to be Apple's case, and another with material on some kind of machinery. But then he had photographs of what he claimed was the iPhone 17 Air battery and had to retract that.

FineWoven being replaced is a common-sense leak too. But, as with any case leak, like Bu's first Liquid Silicone case "leak," there's no guarantee that the case is Apple's.

Overall, Majin Bu leaks in volume rather than in accuracy. But he has been accurate before, possibly in the way that if you take enough shots, you'll hit the target sometimes by accident.

One of his recent — and common sense, more than an actual leak — claims was that the iPhone 17 Pro camera protrusion enlargement may cause Apple to shift its logo. That's since been backed up by many other rumors and leaks.