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Bullstrap logo with the tagline 'enjoy your journey'
Bullstrap logo with the tagline 'enjoy your journey'
The Minimalist Portfolio Case in black leather with card slot
The Minimalist Portfolio Case in black, featuring a sleek design with card slots, placed on a textured surface with accessories.
A person holding the Minimalist Portfolio Case in black with card slots, set on a desk with a drink and stationery.
Black leather iPhone case with card slots on the back
A black minimalist portfolio case with card slot, an AirPods case, and a knife on a dark surface.
Black leather iPhone case with card slots on a plaid background
A person holding a black minimalist portfolio case with a credit card being inserted.
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Close-up of the Minimalist Portfolio Case - BLACK EDITION with a phone showing its cut-out features
A hand holding the Minimalist Portfolio Case - BLACK EDITION with a card visible in the slot.
Black leather iPhone case with card slot, featuring a minimalist design
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A black minimalist portfolio case with card slots, placed on a textured surface alongside a smartwatch and earbuds.
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The Minimalist Portfolio Case - BLACK EDITION
$20
add another item, get 50% off
Discount
4TH OF JULY
15% OFF THE WHOLE STORE
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See it in Action
Tuck your black AMEX nice and snug into one of these bad boys. 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. The two minimal style card-slots on the back are perfectly stitched for credit cards, ID's, and business cards.  Made from the finest materials, your Bullstrap® Portfolio Case will come to life creating a beautiful patina unique to your lifestyle. Looking for an iPhone 13 or older? Click 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

- PC shell construction for case durability and drop-protection

- Stainless Steel Buttons

- Microfiber lining

- Durable Polyester stitching

- Badass Bullstrap logo embossed into leather

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

GOES TOGETHER WITH:

The Minimalist Portfolio Case in black, featuring a sleek design with card slots, placed on a textured surface with accessories.

THE REAL STUFF.

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

Bullstrap's Founder talking about Portfolio 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 flat lay of a camera, leather phone case, AirPods, watch, charging cable, and notebook.

QUALITY FIRST.

Premium, full-wrap leather, 316L stainless-steel buttons, micro-fiber interior liner...

A hand holding a black leather iPhone case with card slots.

MORE...BUT LESS.

At only 1.5mm, the Bullstrap iPhone case adds a confident layer of protection with no additional bulk.

Black leather phone case with card slot and embossed bull logo

UNMATCHED PRECISION.

Designed and crafted with a micro-precision technology to guarantee a seamless, perfect fit.

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.

How many cards fit in the portfolio case?

Our Portfolio iPhone cases allow for 1-2 cards per slot, adding more than the recommended amount will stretch the stitching and potentially damage the case.

Are your cases compatible with wireless charging?

All of our iPhone cases are compatible with QI (standard) wireless chargers.

How much protection do these cases offer for dropped phones?

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.

Are Bullstrap products waterproof?

While our high-quality genuine leather Bullstrap products are splash/water resistant, we do not recommend submerging it in water as it will cause the leather to darken considerably and become more firm. We recommend using our Leather Care Wipes for keeping your leather accessories in it's best shape!

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.

How many cards fit in the portfolio case?

Our Portfolio iPhone cases allow for 1-2 cards per slot, adding more than the recommended amount will stretch the stitching and potentially damage the case.

Are your cases compatible with wireless charging?

All of our iPhone cases are compatible with QI (standard) wireless chargers.

How much protection do these cases offer for dropped phones?

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.

Are Bullstrap products waterproof?

While our high-quality genuine leather Bullstrap products are splash/water resistant, we do not recommend submerging it in water as it will cause the leather to darken considerably and become more firm. We recommend using our Leather Care Wipes for keeping your leather accessories in it's best shape!

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.

How many cards fit in the portfolio case?

Our Portfolio iPhone cases allow for 1-2 cards per slot, adding more than the recommended amount will stretch the stitching and potentially damage the case.

Are your cases compatible with wireless charging?

All of our iPhone cases are compatible with QI (standard) wireless chargers.

How much protection do these cases offer for dropped phones?

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.

Are Bullstrap products waterproof?

While our high-quality genuine leather Bullstrap products are splash/water resistant, we do not recommend submerging it in water as it will cause the leather to darken considerably and become more firm. We recommend using our Leather Care Wipes for keeping your leather accessories in it's best shape!

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.

How many cards fit in the portfolio case?

Our Portfolio iPhone cases allow for 1-2 cards per slot, adding more than the recommended amount will stretch the stitching and potentially damage the case.

Are your cases compatible with wireless charging?

All of our iPhone cases are compatible with QI (standard) wireless chargers.

How much protection do these cases offer for dropped phones?

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.

Are Bullstrap products waterproof?

While our high-quality genuine leather Bullstrap products are splash/water resistant, we do not recommend submerging it in water as it will cause the leather to darken considerably and become more firm. We recommend using our Leather Care Wipes for keeping your leather accessories in it's best shape!

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.

How many cards fit in the portfolio case?

Our Portfolio iPhone cases allow for 1-2 cards per slot, adding more than the recommended amount will stretch the stitching and potentially damage the case.

Are your cases compatible with wireless charging?

All of our iPhone cases are compatible with QI (standard) wireless chargers.

How much protection do these cases offer for dropped phones?

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.

Are Bullstrap products waterproof?

While our high-quality genuine leather Bullstrap products are splash/water resistant, we do not recommend submerging it in water as it will cause the leather to darken considerably and become more firm. We recommend using our Leather Care Wipes for keeping your leather accessories in it's best shape!

100% Real Leather Covered by a lifetime warranty Icon of a hand holding a dollar sign with a circular arrow, indicating a 45-day money back guarantee.

COVERED FOR LIFE.

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

Learn More