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Brown leather case for iPhone 16 with a bull logo
Brown leather phone case with camera cutout and embossed logo
The Flex Case with TPU bumper for protection, featuring options for minimalist and contemporary designs.
Close-up of the side buttons of the Flex Case - TERRA, showcasing its design and texture.
Brown leather Flex Case for iPhone with matching wallet on a white background
The Flex Case in Terra color, showcasing its design and texture on a surface with a wallet.
Close-up of the Flex Case - TERRA showing TPU protective rim
Three Flex Cases in Slate, Brown, and Gray stacked on a table
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The Flex Case in Terra color, showcasing its leather texture and design.
A brown leather iPhone case next to a matching wallet on a dark surface.
The Flex Case in Terra color, featuring a card holder, on a white surface with a plant and cup in the background.
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Comparison of the Flex Case - TERRA fresh out of the box and after 180 days of use
Close-up of the Flex Case showing seamless leather-to-TPU design with text: 'SEAMLESS LEATHER-TO-TPU DESIGN'
The Flex Case - TERRA
$20 $70
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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 16 cases have been designed with a precision cut-out that will allow you full access to iPhone 16’s brand new Capture Button. MagSafe Compatible, Protective, & Sleek.  Important! This case is designed specifically to work with our new MagSafe Charging Cable! Get yours here! FINAL SALE - Cases marked as final sale will not be covered by our Lifetime Warranty or eligible for returns/exchanges.
Leather

- Hides sourced from Europe and northern United States

- Chrome tanning process

- Full-Grain leather with natural variation in texture

- Lightly buffed and dyed with water-based dyes

- Sprayed with oils and waxes for enhancement effects

- Polished to achieve a two-tone color effect

Features

- N52 strongest grade magnets

- TPU bumper construction for maximum case durability and drop-protection

- 316-L Monochromatic Stainless Steel Buttons

- Microfiber inside lining for debris protection

- Badass Bullstrap logo embossed into leather

Comparison of Bullstrap cases versus other cases, highlighting confidence, quality, warranty, and craftsmanship.

GOES TOGETHER WITH:

A brown leather phone case on a table next to a magazine and a cup of coffee.

THE REAL STUFF.

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

Bullstrap's Founder talking about The Flex iPhone cases.

Before
After

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 brown leather iPhone case next to a matching wallet on a dark surface.

MAGSAFE COMPATIBLE.

Designed to work with all MagSafe accessories, but, it works especially well with the Bullstrap MagSafe Wallet (sold separately).

Close-up of the side buttons of the Flex Case - TERRA, showcasing its design and texture.

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 Flex Case - TERRA showing TPU protective rim

PREMIUM LEATHER WITH A TWIST.

Experience luxury with the Flex Case, meticulously crafted from 100% full grain leather and seamless protection.

FAQ:

Is this product really covered by a Lifetime Warranty?

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.

Do the Flex cases have a lock magnet?

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

How does the Flex case differ from the Minimalist case?

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.

Do the MagSafe cases have a lock magnet?

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

What is the reason for adding the TPU bumper all around the case?

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!

Is this product really covered by a Lifetime Warranty?

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.

Do the Flex cases have a lock magnet?

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

How does the Flex case differ from the Minimalist case?

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.

Do the MagSafe cases have a lock magnet?

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

What is the reason for adding the TPU bumper all around the case?

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!

Is this product really covered by a Lifetime Warranty?

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.

Do the Flex cases have a lock magnet?

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

How does the Flex case differ from the Minimalist case?

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.

Do the MagSafe cases have a lock magnet?

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

What is the reason for adding the TPU bumper all around the case?

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!

Is this product really covered by a Lifetime Warranty?

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.

Do the Flex cases have a lock magnet?

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

How does the Flex case differ from the Minimalist case?

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.

Do the MagSafe cases have a lock magnet?

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

What is the reason for adding the TPU bumper all around the case?

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!

Is this product really covered by a Lifetime Warranty?

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.

Do the Flex cases have a lock magnet?

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

How does the Flex case differ from the Minimalist case?

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.

Do the MagSafe cases have a lock magnet?

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

What is the reason for adding the TPU bumper all around the case?

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 FOR LIFE.

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