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The Portfolio Leather Case - SLATE

The Portfolio Leather Case - SLATE

From: $99
Color: SLATE

iPhone 18: In stock & ready to ship now!

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Description
Tuck your black AMEX nice and snug into one of these bad boys.

All Bullstrap iPhone 17 & 18 cases will come with a state-of-the-art touch glass button specifically designed for the Camera Control feature.

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

Every Detail, Built with Purpose.

Tuck your black AMEX nice and snug into one of these bad boys.

All Bullstrap iPhone 17 & 18 cases will come with a state-of-the-art touch glass button specifically designed for the Camera Control feature.

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.

GOES TOGETHER WITH

Bullstrap's Founder talking about Portfolio iPhone cases.

Patina Proud

100% FULL-GRAIN LEATHER

Gray leather smartphone case with embossed bull logo, triple-camera cutout and soft suede texture.
Before
Dark gray leather iPhone case with embossed bull logo and raised triple-camera cutout
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

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.

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'
Slate minimalist phone wallet with a card labeled 'VISA DEBIT', beside open white AirPods and a black leather notebook.

QUALITY FIRST.

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

The Minimalist Portfolio Case in Slate color with card slot and camera cutout

MORE...BUT LESS.

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

The Minimalist Portfolio Case in slate color with a card slot, placed on a desk with a plant and camera

UNMATCHED PRECISION.

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

hide-image
Hand sliding a phone in a slate-gray minimalist leather case into a brown leather bag pocket
A Bullstrap iPhone case in beige color, a brown wallet, and a brown watch on a dark surface.
Angled back view of Terra leather MagSafe iPhone case showing raised camera cutout and embossed elephant logo on wooden table

Overall rating: 4.605263 / 5 from 1102 reviews.

AI Generated Review Summary

The Minimalist Portfolio Case by Bullstrap is highly regarded for its high-quality leather, sleek design, and perfect fit. Customers appreciate its beautiful color, useful pockets, and the ability to hold cards securely. The case is praised for its amazing quality and outstanding customer service.

Summary topics

  • Leather Quality (14%): Customers appreciated the beautiful and high-quality leather used in the product, which was mentioned frequently in the reviews.
  • Comfort and Feel (9%): Customers raved about the great feel of the product, with many mentioning its comfort and quality.
  • Color Appeal (7%): Customers expressed appreciation for the great color of the case, with many describing it as perfect and beautiful.
  • Pocket Utility (3%): Customers keep praising the pockets on this case, describing them as great, perfect, and useful.
  • Card Slot Capacity (6%): It was highlighted by customers that the card slots are perfect for holding a card or two in the pockets.

Review topics: ["color","finish","texture","smell","packaging","weight","quality","feels","shipping","value","fit","looks","customer service","design","buttons","price","functionality","material","warranty","work","service","grip","style","use","size","construction","replacement","case","build","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.
  • "Leather is gorgeous, sturdy material protects the phone and the pockets fit my 3 cards nicely." — Tegan S.

Reviews

Portfolio Case in Slate

"The portfolio case in slate is sleek and cool. The color is understated and gets better with age and use. I love that I can throw a gift card or hotel key in one of the slots. The lifetime warranty and excellent customer are amazing. Will order again."

— Dustin F. (5/5)

Great purchase. Love the feel.

"Great purchase. Love the feel. Fits great. Love the leather."

— Russell K. (5/5)

Great

"Excellent case, I’ve gone through Nomad, Ryan London and Andar, all of which are great vases but my favorite is the bullstrap. Feels genuinely tough and rugged whilst having few creases and wrinkles in the corners. One of the few to make a 17pro case without exposing the whole plateau too!"

— Alexandre C. (5/5)

Great case

"This is my third case by Bulldtrap and I love it."

— Mark A. (5/5)

"These are exceptionally good cases"

— Mike (5/5)

Love my case!

"Great quality, beautiful leather case!"

— laura b. (5/5)

Recommended purchase for leather aficionados

"Leather is best quality, smells great and will patina with time . Expensive and pricey yes, but for an investment of a quality leather, this is justified and will get beautiful over time . Button also is clicky , and quality is sensational. Leather now covers at the bottom, which is 1000% more Better than Apple leather phone case prior ."

— Syazwan Z. (5/5)

Warranty

"Very user friendly. I would highly recommend this company."

— Thomas C. (5/5)

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)

Sleek

"Wish it had Magback"

— Dan M. (4/5)

Q&A