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Rear angled view of The Flex Case, black leather back with embossed rhino, raised camera bumper and side button cutouts
  • Rear angled view of The Flex Case, black leather back with embossed rhino, raised camera bumper and side button cutouts
  • Black leather phone case upright on floor, with brown backpack behind, worn boot at left and star-studded belt at right.
  • Black Flex phone case held in both hands against a person wearing a black shirt and jeans, showing case side buttons.
  • Side view of The Flex Case showing TPU protective rim and buttons.
  • Three-panel infographic showing The Flex Case has a TPU bumper for protection and comparing open-bottom Minimalist and closed-bottom Contemporary designs
  • Hand holding the Flex Case - BLACK EDITION with a circular MagSafe area visible
  • Black Flex Case bottom showing charging port cutout; text overlay: 'CLOSED BOTTOM DESIGN'.
  • A person holding the Flex Case - BLACK EDITION with a card in the pocket.
  • Black leather iPhone case with precision camera control cut-out
  • Black leather iPhone case next to a card holder on a brown surface.
  • Angled close up of The Flex Case with attached black leather card wallet showing camera cutout and magnetic attachment, hands holding over gravel background
  • Angled flat lay of a black Flex Case and a brown leather Flex Case showing camera cutout, side buttons, and leather texture on a white background
  • Black leather iPhone case with camera cutout on a white surface
  • The Flex Case in Black Edition on a desk with a laptop and magazine
  • Two Black Edition Flex Case backs: left FRESH OUT OF THE BOX; right AFTER 180 DAYS, showing wear and patina.
  • Close-up of the Flex Case in black, showing seamless leather-to-TPU design and camera cutout.
  • Close-up of Black Flex Case showing side button cutout and button detail, split backgrounds, overlay 'CUTOUT / BUTTON'
  • Rear angled view of The Flex Case, black leather back with embossed rhino, raised camera bumper and side button cutouts
  • Black leather phone case upright on floor, with brown backpack behind, worn boot at left and star-studded belt at right.
  • Black Flex phone case held in both hands against a person wearing a black shirt and jeans, showing case side buttons.
  • Side view of The Flex Case showing TPU protective rim and buttons.
  • Three-panel infographic showing The Flex Case has a TPU bumper for protection and comparing open-bottom Minimalist and closed-bottom Contemporary designs
  • Hand holding the Flex Case - BLACK EDITION with a circular MagSafe area visible
  • Black Flex Case bottom showing charging port cutout; text overlay: 'CLOSED BOTTOM DESIGN'.
  • A person holding the Flex Case - BLACK EDITION with a card in the pocket.
  • Black leather iPhone case with precision camera control cut-out
  • Black leather iPhone case next to a card holder on a brown surface.
  • Angled close up of The Flex Case with attached black leather card wallet showing camera cutout and magnetic attachment, hands holding over gravel background
  • Angled flat lay of a black Flex Case and a brown leather Flex Case showing camera cutout, side buttons, and leather texture on a white background
  • Black leather iPhone case with camera cutout on a white surface
  • The Flex Case in Black Edition on a desk with a laptop and magazine
  • Two Black Edition Flex Case backs: left FRESH OUT OF THE BOX; right AFTER 180 DAYS, showing wear and patina.
  • Close-up of the Flex Case in black, showing seamless leather-to-TPU design and camera cutout.
  • Close-up of Black Flex Case showing side button cutout and button detail, split backgrounds, overlay 'CUTOUT / BUTTON'
FINAL SALE
FINAL SALE - The Flex Case - BLACK EDITION

The Flex Case - BLACK EDITION

From: $19 $80

This product is not eligible for returns or exchanges, and is not covered by the Lifetime Warranty.
Color: BLACK EDITION
Description

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 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 now come with the option of either a precision cutout or a state-of-the-art touch glass button specifically designed for the Camera Control feature.

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

For Cases with a Camera Control Button:
- Aluminum Button
- PCB Sensing Panel
- Touch Glass Panel
- Soft Link Combination

Pairs well with...

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Leather NavSafe Wallet - BLACK EDITION
Leather NavSafe Wallet - BLACK EDITION
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The MagSafe Charging Puck
The MagSafe Charging Puck
$45

FAQS

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 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.
Angled close up of The Flex Case with attached black leather card wallet showing camera cutout and magnetic attachment, hands holding over gravel background

"No matter what leather case you have, if you drop it, the sides get scuffed. This case is the solution to that problem and it's executed beautifully." - Tyler F.

Reasons to Love

Enjoy your journey with Bullstrap.

Black leather iPhone case with camera cutout on a white surface

MAGSAFE COMPATIBLE.

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

Angled close up of The Flex Case with attached black leather card wallet showing camera cutout and magnetic attachment, hands holding over gravel background

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.

Bottom view of the Bullstrap Flex Case showing charging port and speaker holes.

PREMIUM LEATHER WITH A TWIST.

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

Open book and gray notebook on a black desk mat, reading glasses, ceramic mug, wooden tray with candle and watch, and a pen holder.
Interior view of the Leather MacBook Sleeve showing compartments and a MacBook inside.
Hands opening a worn brown leather backpack on a concrete floor.
A person in a suit holding a tan leather iPad case, branded SIENNA.