Rear angled view of The Flex Case, black leather back with embossed rhino, raised camera bumper and side button cutouts

The Flex Case - BLACK EDITION

From: $80

Color: BLACK EDITION

Leather NavSafe Wallet - BLACK EDITION✓ 8 out of 10 shoppers grab this too

$62 $8930% OFF

100% LEATHER

LIFETIME GUARANTEE

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

Every Detail, Built with Purpose.

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!

Bullstrap's Founder talking about The Flex iPhone cases.

Patina Proud

100% FULL-GRAIN LEATHER

Before

After

pa·ti·na — the natural aging process that occurs on the surface of leather products over time. As leather is exposed to 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.

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.

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'

Overall rating: 4.4541483 / 5 from 458 reviews.

AI Generated Review Summary

The Flex Case - BLACK EDITION by Bullstrap offers luxury leather craftsmanship with a sleek, durable design. Customers praise its perfect fit, luxurious look, and buttery smooth leather. It provides great protection and includes a lifetime warranty, though some find the magnet strength weaker than expected.

Summary topics

Magnet Strength (3%): The feedback is varied, with some mentioning that the magnet strength is weaker than a standard iPhone MagSafe case.
Product Quality (9%): Customers appreciated the amazing quality of the product, which was mentioned multiple times in the reviews.
Product Appearance (10%): Customers loved the look of the product, with many mentioning that it looks great and luxurious.
Product Fit (5%): Customers raved about the fit of the product, with many describing it as absolutely perfect.
Product Protection (5%): Customers appreciated the great protection provided by the leather case, which was mentioned multiple times in the reviews.

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

Review highlights

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

Reviews

Case is falling apart

"I’ve had the case for about 3 1/2 months and the side button has fallen apart. I’m a bit disappointed on the product."

— Eddie L. (3/5)

Best. Phone. Case. Ever.

"I adore this phone case! The Sienna color is stunning but there are many other colors to choose from. You will not be disappointed in the look or feel of the case!"

— Craig W. (5/5)

Love this case!

"The flex case is amazing! The fit is perfect, it looks great, and my phone feels very well protected!"

— Robert P. (5/5)

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)

"Exactly as described"

— Scott (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)

Q&A

Can I get the cut out instead of the camera button on a flex case for a 16 pro?: Unfortunately, the Flex Case is now only available with the camera button. The version without the camera button is sold out and will not be restocked.
Can I wrap a lanyard strap around the cutout on the bottom of a flex case: Thanks for reaching out! It is possible to attach a lanyard strap through the cutout on the bottom of a Flex case, but we don’t recommend it as we haven’t tested it ourselves. Let us know if you have any other questions!