abrAsus Slim Card Case

A simply structured case for those of our customers who asked for a card case to go along with their Slim Wallets

Specially built storage that fits together with your Slim Wallet for keeping regularly in your bag or pocket

abrAsus Slim Wallets are designed on the concept of keeping only the cards you need most in your wallet for walking around. We've designed them to keep only around 5 cards. We've heard from many users of our Slim Wallets that they'd like to have a card case to keep with their wallets. Thus, we've now come up with this abrAsus Slim Card Case. This card case is for all of the cards that you can't fit in your Slim Wallet but still want to carry around in your bag or pocket. We designed it with the goal of making it as simple as possible, easy to use, and slim. Ordinarily, you can put the Slim Card Case in your bag or pocket as-is, but we've made it so that you can attach it to a Slim Wallet as well. However, if you do attach the Card Case to a Slim Wallet and put it in your pocket, it will be about as thick as an ordinary wallet. Ultimately, the ability to attach a Slim Card Case to a Slim Wallet is an extra feature. We've simply made it so that, should you want to carry a large number of cards around when you put your Slim Wallet in your bag, you can do so conveniently by attaching the Card Case.

Store in bags or pockets or connect to a Slim Wallet

Even if you insert ten cards, this Case will only be 16mm thick; an impressive slimness for a simple card case that is also so easy to use

  1. Removed lining to achieve thinness
    Removed lining to achieve thinness
  2. Stores 10 cards
    Stores 10 cards
  3. Embossed leather that is more resistant to dirt stains and scratches
    Embossed leather that is more resistant to dirt stains and scratches
  4. Lining added to protect cards
    Lining added to protect cards
  5. Easy to remove cards
    Easy to remove cards

You can affix it to your Slim Wallet

Apart from simply placing the Slim Card Case in your bag or pocket, you can attach it to your Slim Wallet through its special construction and carry them together.

The Slim Card Case can be attached to the Slim Wallet
Japan's Technique × Design

Japan's Technique × Design

Use of Japanese Leather Processing Techniques

Our abrAsus items are built without the use of premade leather and instead use a light, tough leather custom ordered and selected especially for abrAsus and processed and completed in Japan. Additionally, the stitching is done in a durable thread of the highest quality, which won't break or fray easily. Only natural cowhide is used for abrAsus products. Please enjoy the tangibility of the leather, crafted by artisans of Japan.

Skilled craftsmen put their best efforts into each one

abrAsus products are made thoroughly and one at a time, with Japanese craft workers handling every process, including the treatment, skiving, sewing, and lacquering of the edges of the leather, from start to finish. Some of the workers involved in our craftsmanship are over 65 years of age. It's no overstatement to say that it is thanks to these richly-experienced craftsmen with meticulous attention to detail that this portable, functional, and well-designed abrAsus product has become a commodity. abrAsus products are an item of incredible quality born of an innovative, unprecedented idea through our leather craftsmen's bounty of experience and passion.

  • Holds 10 cards
  • Can be used individually and stored in a bag or pocket, or attached to the abrAsus Slim Wallet for extra cards.
  • Exterior: Embossed natural cowhide leather
  • Interior: Cotton based polyurethane coated fabric
  • 90mm × 60mm x 16mm (when closed)
  • 230mm × 60mm x 16mm (when open)
  • 18g



Good for business or everyday use as it is more resistant to scratches and dirt stains.

Dry cloth Brushed Eraser Cream Waterproof spray

Since rubbing too strongly with the eraser will cause discoloration, please use caution. Also rubbing too strongly when applying cream will cause discoloration, we ask that you wipe gently.


Finished with a smooth and glossy surface which is easy to maintain.

Dry cloth Brushed Eraser Cream Waterproof spray
× × × ×

Since the leather surface has been processed with a resin, please treat leather by wiping with a dry cloth only.


A high-quality Italian leather that ages beautifully. Every piece of this natural leather is one-of-a-kind, marked with unique patterns of wrinkles, scars and blood vessels.

Dry cloth Brushed Eraser Cream Waterproof spray

*Please visit our Product Care page for information on caring for your leather.


abrAsus Slim Card Case

Regular price ¥7,000 JPY Sale

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