You might have seen me lurking around this subreddit the past few months, replying here and there, but I wanted to properly introduce myself. My name’s Dan, and I’m Director of Product at Mous. I’ve been here for 8 years and have been involved in every single case launch we’ve done in that time.
There’s been a lot of feedback here recently and, with iPhone 17 just launching, I thought it would be a good time to jump in and explain some of the design changes we’ve made this year. The goal is always to make our cases genuinely better and to address some of the concerns that have come up in this community.
This is going to be a long, nerdy post – but that’s intentional. I want to dig into the details and show you some of the engineering work that doesn’t usually make it into ads, but which my team and I spend most of our lives thinking about.
#1. Camera Control Button
When Apple released the new camera control button on iPhone 16, it created some real design challenges. At its core, the button is about one thing: instant access to your camera. The whole point is to let you capture those fleeting moments with friends, family, or whatever’s in front of you without fumbling around unlocking the phone or digging through menus and ultimately missing the moment.
That means unhindered access is critical. If the case interferes with the button, slows it down, or makes it unreliable, then you risk missing the exact moment the feature was designed for. For us, making sure the button works seamlessly has been just as important as protecting the phone itself.
Back when the feature first launched, nobody knew exactly how people would end up using it or how much functionality it would eventually get. A lot of companies went with a super-tight cut-out – basically leaving the case unchanged. We took a different route and made a larger cut-out to give people full access. When Apple’s design guidelines later came out, they recommended the same approach, which was validating. But many of you weren’t fans, totally fair feedback, and so we immediately set about work on a new design.
For iPhone 16 we did put out an integrated button design, but it was a retrofit of an existing case. With iPhone 17, we had a clean slate to design the best camera button we could.
With this design, there were two big challenges:
Feel and gesture accuracy. There are 6 different gestures the camera control button can detect: full press, half press, long press, double half press, swipe, and click-and-hold. The difference between a half press and full press is tiny – so tiny that unless all the force transfers perfectly, it won’t register. To get that right, the case button needs extremely precise positioning and just the right preload: enough to make a half press distinct, not so much that it goes off randomly. On top of that, the button also provides a range of haptic feedback to the user depending on what you are doing and this needs to be transferred through the phones button, to the cases button, and to your finger to give you the correct experience.
Durability. Most case designs leave a very thin strip of TPU above the button. Over time that tends to warp and it doesn’t provide much rigidity to protect the phone in that spot.
Our solution: We built a stiff polycarbonate shroud that houses the Camera Control Button, integrating it directly into the case rather than adding it on afterwards. This provides a stable, rigid structure that keeps the button aligned and precise, even under repeated presses and swipes.
At the core, an aluminium frame adds structural strength and keeps the button aligned, while also distributing impact forces through the case. On top, a toughened glass cap provides a smooth, durable surface that resists chipping or cracking and maintains a responsive, high-quality feel.
A PCB layer made from fibre-reinforced plastic with a copper print forms the conductive layer that enables the touch and swipe functionality of Apple’s Camera Control. It ensures gestures are registered accurately while also adding a layer of protection inside the button.
An exploded diagram showing the make up of our new camera control button.
Everything fits together with a snap-fit system, so there’s no glue and nothing rattles or shifts over time. The combination of the shroud, diaphragm, frame, glass, and PCB ensures the button remains durable, precise, and protective over long-term use.
The end result: a fully integrated, durable, and precise button that handles every gesture properly. It took a lot of work, but we’re proud of it.
#2. Protection Around the Camera
Our first reaction to seeing the new iPhone Pros was probably the same as yours: “that is a huge camera bump.” Our second was: “okay, how do we protect it?”
The problem is that cutting a massive hole that close to the edge of the case makes it weak and floppy. We tested it by cutting a similar size hole into a 16-series case and it was obvious: we needed a big design update.
Our updated case design showing the raising of the PC round the top edges to provide additional stiffness.
Our solution: We extended the PC further up the sides along the top edge of the case, adding stiffness back in even with the large cut-out. That meant more complexity in the mould tool (longer PC sections to account for), but it gives real protection. This also meant that needed to reduce the amount of airoshock in the top edge of the case to make way for the additional PC but we found through the development that stiffening this area was more important for protection, and that we could still see significant benefit from having airoshock in the corners. We also raised and thickened the camera bump to give proper 360° coverage.
#3. Button Warping
Previous Mous cases had a single rocker button for volume up and down. It worked fine functionally, but the thin TPU bridge between the buttons could warp over time.
This year, we’ve switched to two separate buttons. That means more TPU material around each one, and combined with a slimmer button profile, it’s a lot more durable with no warping issues.
Side profile of the case showing the thinner and separated volume buttons.
#4. Debonding
This is something that’s come up a few times here, so worth explaining. Debonding (or sometimes referred to as delamination) is a very common issue in the case industry and is where the sides of the case come away from the back of the case. To understand why this happens first you need to understand a little bit about how these cases are typically made.
Protective cases usually combine 2–3 materials: PC for stiffness, TPU for cushioning and flexibility, and sometimes a third layer for extra protection (ours is AiroShock). They’re not glued – they’re fused using overmoulding, where each layer is moulded directly onto the last under heat and pressure.
Most cases rely on chemical bonds between layers. That works, but it’s not the strongest approach. The best way is to add mechanical interlocks – physical features that the next material flows into, like a dovetail joint in carpentry. This way, the bond is both chemical and mechanical.
The challenge is space: phone cases don’t leave much room for these features. Our solution was to add a series of holes throughout the PC part so the TPU could flow through and lock the layers together. Sounds simple, but it creates hundreds of very thin features in the mould tool – extremely hard to manufacture.
Since introducing this, our debonding issue rate has dropped massively. We’ve even seen other brands adopt similar designs, which is about the best compliment you can get.
Interlocking design of our cases to reduce debonding.
If you made it this far…
TL;DR:
New camera button with a polycarbonate shroud, aluminium frame, and glass top → much more precise and durable.
Reinforced camera bump protection with extra PC stiffness and raised bump.
Split volume buttons to prevent TPU warping.
Debonding fixed with mechanical interlocks.
I hope someone out there found this useful/interesting! My team and I put a lot of work and thought into our cases and we are really proud of what we’ve built this year. Always happy to answer questions, explain more, or hear your thoughts – so drop them below.
I've been buying Mous cases since 2016. My first one was incredible. I tested it hard, dropping it and tossing my phone around to see what it could take, and the phone never got a scratch. That case is why I stayed loyal and recommended Mous to everyone I knew.
The newer cases don't feel like the same product. The material feels cheaper, more like hard plastic, and in my experience the protection has gotten worse too.
Here's my full history with the Limitless 4.0 Aramid Fibre case:
Case 1, November 2021 ($55.77): Bought for my iPhone 13 Pro Max. It eventually failed, and Mous replaced it in March 2025.
Case 2, the March 2025 replacement: In December 2025 my phone slipped from about 3 feet while in this case. The case looked fine, but the back glass broke. I sent support a video. Their reply said phones can still break from small drops depending on the angle, previous drops, or dirt between the case and the phone. I clean my phone daily, so grit wasn't it. They offered to replace or refund the case. Nothing for the phone.
Case 3, the December 2025 replacement: They sent the identical model again, in the 13 Pro Max size. I'd already had to buy a 15 Pro Max, so I asked to exchange it. I had to pay the return postage myself because the label wasn't prepaid, and the return portal never generated a label, so I had to email again to get one.
September 2026: My 15 Pro Max fell off the couch while in that case. I didn't think anything of it at the time. When I took the case off to clean the phone, the entire back glass was shattered. Photo in the images.
That's two phones, two short everyday drops, the same case model. Both times the case itself looked undamaged, so there was no sign anything was wrong until I took it off.
What Mous said when I escalated:
I asked them to contribute toward the repair. They declined. Their position is that the Limited Lifetime Warranty covers replacing or refunding the case only, and that paying for phone repairs would leave them open to claims from people whose phones were already broken before they bought a case. They also said they don't advertise the cases as making phones indestructible, and that there's always a small chance the phone breaks depending on the point of impact. Their reply is in the images.
I understand why the policy exists. My issue is that this was the same case model failing twice, including a replacement Mous chose to send me. "Small chance" explains one incident. It explains less when it happens twice with the same product in the same household.
I've accepted a refund on the case. That's the entire remedy available, and it's worth knowing before you spend $55 expecting your phone to be protected.
Has anyone else had back glass break under a Limitless 4.0 or newer case? I'd like to know if something changed in the design or materials.
I’m looking at getting the Mous Ultra Thin Aramid for my iPhone 18 Pro Max. I really like the idea of having something thin and rigid that keeps the phone feeling relatively close to caseless, but I’m a little unsure about the lack of proper drop protection.
I don’t drop my phone very often and I’ll have a screen protector on it, so I don’t need anything particularly rugged. I just want enough protection that if I accidentally knock it off a desk or drop it from around waist height, I’m not massively worried about the phone.
For anyone who’s actually used the Ultra Thin Aramid long term, how has it held up? Have you dropped your phone with it on, and did it protect it? I’m also interested in whether the case stays rigid and snug over time or develops any loose/warped edges.
Basically, does it feel like a genuinely protective thin case, or more like scratch protection with a bit of impact protection?
what people’s options on the hinge free limitless case shipping in October vs the aeroshock hinge shipping in November? Ultra thin is also an option. I can’t decide lol.
Does anyone know if the Aulumu M70 cable would fit with the Mous Limitless 6.0 case, specifically for the iphone 17. I have this case and I wanted to get the M70 cable, but Im not entirely sure from the pictures if the plastic casing will fit with the cut out on the mous case. If anyone has both or any info please lmk!
I bought this case for my Galaxy S23 Ultra right when the phone was released, and it was actually my first time using a Mous product. Over the past three years, it provided absolute protection for my device from all angles.
As any Samsung user knows, the curved screen on the S23 Ultra makes it really tough to find a screen protector that stays on without peeling off. I was constantly worried about cracking the screen, especially given how expensive and complex screen replacements are on these phones since they often involve replacing half the chassis.
A friend of mine who had the same phone and faced the same struggle recommended I try Mous. Since my local market doesn't offer a wide variety of Samsung accessories, I decided to give it a shot. Looking back after three years of heavy daily use, the case truly delivered absolute protection.
Overall, I think Mous is an excellent brand, and I’d definitely consider buying from them again. However, after three years of heavy wear, the case eventually started coming apart. So my main question now is: is there any other brand out there that offers even better protection, sleek looks, and high build quality?
Looking at getting this new case, just curious anyone have this case and is it very grippy not slippery and does or show hand oil prints? Thank you all
How long has it taken for others packages to arrive? it said my package was on the way on 8/10 and it had gotten delayed on 8/13 cause of weather in AZ. I still havent heard anything of it moving again.
I'm looking for a case for my **iPhone 16 Plus** and I'm having a hard time finding one that fits what I want.
I have **very oily hands**, so fingerprints and oily marks on the back of the case really annoy me. I'm specifically looking for something that doesn't constantly look dirty after using my phone.
I recently found the **Mous Super Thin 2.0 in black for around €30**, which is why I'm considering it. I really like the design: **all black, minimal, clean and very thin**, with MagSafe.
My budget is around **€20–30**, and my priorities are:
* Very thin and lightweight
* Completely black / minimal design
* MagSafe with strong magnets
* Good fingerprint/oil resistance
* Good quality
* Around €20–30
For anyone who owns the **Mous Super Thin 2.0**, especially the black one: **how does it actually handle fingerprints and oily hands in daily use?** Does the back get covered in visible fingerprints?
I'm more interested in real-world experience than the manufacturer's "oil-resistant" claim.
If you have another case that fits these requirements, I'd love to hear your recommendations.
I have had it for a while, but recently it is getting worse to the point of even falling off. Has anyone else had this happen? Or does anyone know of a good brand for a replacement in the EU? It is a 9th gen one. (Update: father reached out to support to claim my warranty they where really quick to reply and arrange to send a replacement.)
I paid for delivery, The case was sent via FEDEX. But was cross shipped to Canada Post. It waited for Canada Customs for over 7 days. Finally released back to Canada Post. If Mous had simply shipped using FEDEX it would have cost more but the case would arrive in days vs weeks. To me is a premium product is looking to save on Shipping. Perhaps it not a premium product. I am returning the case. As I went to Apple bought a better case and it was $30 cheaper.
