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Bullstrap
Bullstrap
The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
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The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
The Flex Case - SIENNA
hide-image

The Flex Case - SIENNA

$20
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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!  
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

Other CASES
CONFIDENCE
Being admired never goes out of style.
No compliments from friends or colleagues.
2X WARRANTY
2 replacements a year for literally any reason. Try us, we’ve heard it all.
Cost to replace is the cost of the case because you’re just buying a new one.
PREMIUM
100% genuine, full-grain leather.
Cheap materials and cheap quality.
HANDCRAFTED
Each case is artisinally made by hand by a leather expert.
Mass manufactured and machine made.

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.

MAGSAFE COMPATIBLE.

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

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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.

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.

Learn More