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Sienna leather iPhone case with two diagonal card slots and Bullstrap logo, camera cutout visible

The Minimalist Portfolio Case - SIENNA

From: $99
COLORS: SIENNA
100% REAL LEATHER
COVERED BY A LIFETIME WARRANTY
45-DAY MONEY BACK GUARANTEE
See it in Action
Description
Tuck your black AMEX nice and snug into one of these bad boys.
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 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

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.

Features

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

PAIRS WELL WITH...

A person holding the Minimalist Portfolio Case in SIENNA color, inserting a card into it.A person holding the Minimalist Portfolio Case in SIENNA color, inserting a card into it.

THE REAL STUFF.

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

Bullstrap's Founder talking about Portfolio 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 Minimalist Portfolio Case in SIENNA color, inserting a card into it.

QUALITY FIRST.

Premium, full-wrap leather and micro-fiber interior liner...

Top-down of Sienna Minimalist Portfolio case showing rear card pocket and camera cutout on dark textured tabletop

MORE...BUT LESS.

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

Hand holding tan leather iPhone case in front of brown leather backpack on wicker stool, leafy background.

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 policy with the link at the bottom of the 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.

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.

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 trust badge
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: 4.6433964 / 5 from 1060 reviews.

AI Generated Review Summary

The Minimalist Portfolio Case by SIENNA is praised for its beautiful leather, exceptional customer service, high-quality pockets, and great fit. Customers also appreciate its sleek design, fantastic feel, and the perfect fit for cards.

Summary topics

  • Leather Quality: 14%
  • Customer Service: 5%
  • Card Slots: 3%
  • Product Color: 7%
  • Product Feel: 9%

Review topics: ["color","finish","texture","smell","shipping","quality","fit","cover","size","appearance","packaging","issue","weight","value","service","work","design","customer service","buttons","looks","functionality","warranty","material","price","grip","style","construction","feels","replacement","support"].

Review highlights

  • "Looks good, smells good, feels good, iPhone 12 fits perfect and love the credit card slots."George C.
  • "Love the leather, love the color, makes my phone look beautiful and fun to hold."Raul S.
  • "Great quality, awesome color, soft leather, was the perfect gift."Kim P.

Reviews

More Than Just a Phone Case

"I received my Portfolio iPhone case and am really happy with the purchase. In addition to the quality, I like the two slots on the back for my license and a credit card. It allows me to avoid taking my wallet along with my phone when I prefer just the essentials. Great product!"

Jordan K. (5/5)

Best Phone Case on the Market… PERIOD!!!

"(1) Build: Bullstrap, enough said. (2) Appearance: Love the blue. Bright enough to know it’s blue, yet dark enough that it doesn’t overwhelm. (3) Profile: Perfect… These cases have replaced my need to carry a wallet everyday. I currently have 3 on rotation!!!"

Chris S. (5/5)

"Got boubon color half case/card slots on back: Beautiful dark brown color. Case leather is very smooth and full looking and feeling. Leather smells wonderful can tell high quality real leather. Can fit my ID and two cards in slots perfectly. Fit is great on iphone tight but not hard to get off where will hurt phone; yet tight fit wherebphone wont drop out of it. Only dislike is it is open bottom which if drops worried aboutnpotential phone damage; but as long dont drop phone a lot it be okay. Also company offers and honors warranty because this was a replacement. Highly recommend product and company."

Krystle (5/5)

Great material, but lacks magnet support

"The material is excellent; feels good and holds well. However, can’t use the QI charge or the magnet to mount on stands."

Usame S. (3/5)

"Great quality, beautiful product."

Braylan (5/5)

Mark's Bullstrap iPhone Case Review

"There is just something about the simply elegance of Bullstrap iPhone cases that is hard to put into words. They are well made, they look like quality should look like, and they wear with beautiful patina over time. Plus, the company stands behind their products with that lifetime guarantee. I could not be more happy with my new case. I make sure that every time I'm with someone else, I lay my phone face first on the table so they can see the case. . . . . Subtley, of course, with a dose of intentionality."

Mark K. (5/5)

"Lifetime warranty replacement. Saved my phones life from a 2nd story fall"

andrew (5/5)

Unique and stylish.

"Unique and stylish."

Win T. (5/5)

"Best leather case ever! So soft and leathery"

Anthony (5/5)

Great design and snug fit.

"Great design and snug fit."

Ajay C. (5/5)

Q&A

In theory this is exactly what I want. Just need to carry two cards and probably will never stack multiple cards into one slot. I am concerned about a card falling out. How secure are they?
They’re very secure! Just keep in mind to store only up to 2 cards per slot. Over time, the slots can naturally loosen a bit, but if that ever happens, you can easily file a warranty claim with us.
Is there a case that fits the iPhone 16e model?
Thanks for reaching out! Yes, we’ve officially launched the iPhone 16e cases as of last Wednesday, and they are now available on our website. You can choose between the Minimalist and Portfolio styles, and they’re offered in our core color options: Sienna, Black, Ocean, Slate, and Terra. Let us know if you have any questions or need help picking one out!
How long can I expect to wait for the iPhone 13 pro portfolio case in sienna, it is currently back ordered?
Hey Danielle, They should ship out on or after 3/31!
Just opened my new case and it only has one of the credit card slots? Is there a reason it’s missing the second?
Hey Keri, All of our iPhone Portfolio cases have two slots except the iPhone 12 mini and 13 mini Portfolio cases which only have 1 slot.
I would like to spray my new case with leather protector. Any problem with that.
Hey Cindy, Please refer to this article: https://bullstrap.co/blogs/posts/caring-for-your-bullstrap-leather-accessories