The Flex Case - SIENNA

From: $80

COLORS: SIENNA

Leather NavSafe Wallet - SIENNA

$53 $8940% Off

100% REAL LEATHER

COVERED BY A LIFETIME WARRANTY

45-DAY MONEY BACK GUARANTEE

See it in Action

Introducing the Bullstrap Flex Case, where our classic luxury leather meets stylish and sleek durability for your everyday use.

Crafted with precision from 100% full grain leather on the back and fortified with a shock-absorbent TPU rim, this case offers unparalleled protection and style.

All Bullstrap iPhone 17 cases will come with a state-of-the-art touch glass button specifically designed for the Camera Control feature.

All Bullstrap iPhone 16 cases now come with the option of either a precision cutout or a state-of-the-art touch glass button specifically designed for the Camera Control feature.

MagSafe Compatible, Protective, & Sleek.

Important! This case is designed specifically to work with our new MagSafe Charging Cable! Get yours here!

Our premium full-grain leather is sourced from the finest tanneries. Each piece develops a unique patina over time, making your case truly one of a kind. The leather is naturally water-resistant and incredibly durable.

Precision cutouts for all ports and buttons
Slim profile design
Raised edges for camera protection
Wireless charging compatible

Infographic showing US VS THEM comparison: Bullstrap beats others on confidence, quality, warranty, and handcrafted build

A hand holding the Flex Case in SIENNA color, showcasing its leather texture and design.

THE REAL STUFF.

100% full-grain leather. No fake "pleather", no BS!

Bullstrap's Founder talking about The Flex iPhone cases.

PATINA PROUD

100% FULL-GRAIN LEATHER

pa·ti·na - the natural aging process that occurs on the surface of leather products over time. As leather is exposed to elements such as light, air, and handling, it develops a unique, rich sheen and darkens in color. This change is often considered desirable because it enhances the leather's character and beauty, giving it a distinctive, lived-in appearance.

A person holding the Flex Case - SIENNA phone case, partially inserted into their pocket. — MAGSAFE COMPATIBLE.
Designed to work with all MagSafe accessories, but, it works especially well with the Bullstrap MagSafe Wallet (sold separately).

VERSATILE APPEAL.

Whether you're in the office or traveling, the Flex Case offers reliable protection without sacrificing style, ensuring your device remains safe wherever you go.

Close-up of the bottom of the Bullstrap Flex Case showing the charging port and speaker holes. — PREMIUM LEATHER WITH A TWIST.
Experience luxury with the Flex Case, meticulously crafted from 100% full grain leather and seamless protection.

FAQ

Yes, it’s real. And it’s awesome. If you want to read some legal nonsense, you can learn more about our Lifetime Warranty by clicking the link at the bottom of this page. But suffice it to say, we’ve got you covered.

Yes! It’s the magnetic line under the circle of magnets to help it stay in place and not spin around.

The main difference is protection! The shock absorbing TPU rim on the Flex case will protect not only your phone, but also the full-grain leather backing from getting torn on the sides. Other than the sides, the phone case are both MagSafe compatible and made with the highest quality leather on the market.

Yes! It’s the magnetic line under the circle of magnets to help it stay in place and not spin around.

We added this extra protection to prevent ripping/tearing on the edges of your case! We understand leather and while it may be beautiful, it sometimes doesn't withstand being dropped on concrete. That's why we made this case. for those who want the look of a leather case with also the protective characteristics of a plastic case!

Covered by a lifetime warranty with a checkmark icon

Icon of a hand holding a dollar sign with text '45-DAY MONEY BACK GUARANTEE'

COVERED FOR LIFE.

And we mean it. Read more about our exclusive lifetime warranty below.

LEARN MORE

Overall rating: 4.4537444 / 5 from 454 reviews.

AI Generated Review Summary

The Flex Case by Bullstrap offers a perfect blend of luxury leather and sleek durability. Customers praise its premium feel, perfect fit, and great protection. The case also boasts a beautiful color, high-quality construction, and a lifetime warranty. However, some users noted that the magnet strength is weaker than expected, and the buttons may feel loose.

Summary topics

Leather Quality: 15%
Product Fit: 5%
Case Protection: 5%
Product Color: 5%
Lifetime Warranty: 3%

Review topics: ["color","texture","shipping","smell","quality","fit","packaging","cover","service","buttons","warranty","issue","customer service","grip","edges","looks","style","support","material","price","control","connection","scratches","feels","durability","replacement","case","leather","protection","phone"].

Review highlights

"Great product, perfect fit very durable and makes the phone look great" — Bert B.
"Perfect fit, premium leather, and strong MagSafe." — Jonathan P.
"The case is great, high quality and looks prefect." — Boya

Reviews

Love Bullstrap!

"Great case. My initial case had an issue with the power hole but customer service got it sorted. Really great company to deal with. Thanks!!"

— Justin Y. (5/5)

I finally tried a fancy leather case.

"Case flexes out at the camera button and the sides can be slick at times. The leather is top notch and looks amazing!"

— Dwayne B. (3/5)

"Stellar Quality!"

— Devon (5/5)

"I had a Bullstrap case on my last iPhone and absolutely loved it. It was the only case I had for that phone for two years and it just got better with age. So when I switched iPhones, I was excited to get another Bullstrap case. This one was as beautiful as the last one, however, the little flush button that operates the camera – for whatever reason it is extremely sensitive with this case and every time I pick up my phone, I wind up taking a picture of my foot or a table top or the console of my car. I got so tired of it that I’ve stopped using the case. I have another case that doesn’t do this. It’s not as nice as the Bullstrap but it’s less of a hassle. Yo.Its a shame because the Bullstrap looks so great."

— Rob (3/5)

I really like the flex

"I really like the flex case. With the TPU on the sides I feel better protected for drops than the all leather case."

— Harvey B. (5/5)

Button cutout flaw

"This is the perfect case but the cutout for the bottom right button completely weakens the protection of the phone. That little strip that goes over the button is paper thin and because of that the case can be pushed off the phone easily and reveal the corners of the screen. If I dropped the phone on its face there is no doubt that corner would be exposed and hit very hard because of that cutout and weak banding."

— Ned (3/5)

Great case. Would definitely purchase

"Great case. Would definitely purchase again."

— Andy B. (5/5)

The button for the camera

"The button for the camera presses too many times accidentally and the button cover has already come off. Looks like it was poorly glued"

— Viktor V. (2/5)

Quality phone case

"I got the flex case in terra, goes well with the orange iPhone. The quality so far seems great. I've already dropped my phone twice and both the case and phone have no damage. I'm satisfied with my purchase and would recommend this case. Will probably be a returning customer as well."

— David U. (5/5)

great product great look keep

"great product great look keep ordering after each new product release"

— Christopher H. (5/5)

Q&A

Does the flex case for the iPhone 17 Pro have a cutout for the flash on the back of the phone? The pictured case look like it covers up the camera flash.: Yes! The newer Flex Case for the iPhone 17 Pro does have a cutout for the flash on the back of the phone.
Do y’all have one for the iPhone 15 pro max available?: Hi! We still have a few Flex cases available for the iPhone 15 Pro Max. Please feel free to browse through: https://bullstrap.co/products/sale-the-flex-case-slate?variant=45441552089282
How do I make a return?: Thank you for contacting Team Bullstrap! We would be more than happy to process a return/exchange for you... Please go to http://returns.bullstrap.co to begin the return/exchange application process. Please note that we do require photos for any and all returns/exchanges. If a photo isn't submitted, we will have to contact you for the photo, making the process longer for both parties. So we do ask that you kindly provide a photo(s)!
Will the TPU bumper look strange as the leather patinas over time?: Thanks for reaching out! Yes, the TPU bumper may show a slight contrast as the leather develops its patina over time, but it’s generally subtle and doesn’t take away from the overall aesthetic. In fact, many of our customers find that the combination adds a bit of character to the case.
What is the drop limit of this case? Thanks!: Our production and research team has conducted a series of drop tests across the different sizes of phone cases that we offer. After conducting these tests, we’ve concluded that anything within a six foot drop is where we know the phone/case remains safe. We’ve obviously had tests where both the phone and case consistently survive harsher throws and drops, but within six feet is an extremely safe range.

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