“Tenuis Mini Crowdfunding Page”
A New Mini Wallet That Is Both Thin and Small
A mini version of the classic thin wallet “Tenuis” is coming. Mini wallets have gradually become more common since around 2020, but many end up being bulky in pursuit of small size. The Tenuis Mini is based on the design of the Tenuis, which has always prioritized thinness, and takes it to the extreme by minimizing its size.
Past crowdfunding records for the standard-size Tenuis:
Tenuis Zipper-Type Canvas Edition: Approximately 44 million yen in support
Tenuis Zipper-Type Leather Edition: Approximately 24 million yen in support
Approximately 88 mm (H) × 82 mm (W) (when folded) × 8 mm (thickness when empty)
The height is just long enough to fit cards. Although the width is short, the clever gusset design maximizes space for storing bills. This wallet is designed for those who prioritize small size and want something that won’t add bulk in their pocket.
This product will be offered through crowdfunding on our website. It will not be shipped immediately after payment.
------------------------------------------------------------------------------------
Campaign Period Friday, November 13, 2026, 20:00 to Sunday, January 17, 2027, 23:59 (Approximately 2 months)
Campaign Type Guaranteed production. We will produce and deliver the product regardless of the total amount raised.
Production Period Approximately 4 months after the end of this campaign
Estimated Delivery Date and Important Notes Around May 2027 (Delivery may occur earlier or later than scheduled depending on circumstances). After the campaign ends, we will provide regular updates on the production status via newsletters and other means.
How to Participate Select your preferred reward from the Super Early Bird, Early Bird, or Special Campaign Price options, specify your color, enter your shipping address and other required information, and complete your payment to finalize your support.
Cancellations & Refunds As this is an event hosted on our own website, cancellations and refunds are available from the time of application until the end of the campaign, as well as within 7 days after receiving the product, provided it remains unused. *Please note that the customer will be responsible for the shipping costs in the event of a cancellation.
Support Price Display For deliveries within Japan, all displayed prices include tax and shipping. For international shipping, the displayed prices include tax, but a flat international shipping fee of 1,000 yen will apply.
------------------------------------------------------------------------------------
Purpose of the Crowdfunding Campaign
After finalizing the concept of this product, we completed the design through repeated prototyping. However, mass production requires a significant initial investment to procure materials such as Italian oiled leather and goatskin, create dies, and prepare the sewing process. Preparing for small-batch production would increase costs and the retail price, making it difficult to maintain a stable long-term supply.
Therefore, we are using this crowdfunding campaign to raise the funds necessary for the initial production run, establish a stable supply of materials and production resources, and create a system that will allow us to provide the product reliably over the long term.
The funds raised will be used to purchase materials for the initial production run, prepare for manufacturing, manage quality, and fund production. We hope you will support us in developing a wallet that combines thinness and small size into a product that can be used for a long time, not just once.
Features
Two-layered card slot
To make effective use of the limited area, we adopted two card pockets positioned intentionally offset from each other.
- Bottom layer: Easily insert and remove two frequently used cards from the top
- Top layer: Insert and remove four cards from the side
-
Recommended capacity: 6 cards
※One additional card can be added to each slot, but this may increase the thickness or affect how well the wallet closes depending on other items stored.
Furthermore, when the wallet is closed, the zipper pull on the coin pocket fits perfectly into the “empty space” of the two-layered slot. This also keeps the stack of cards in the folded section of the wallet to 4 instead of 6, helping maintain its slim appearance.
Visualizing the card insertion and removal directions
Bottom layer: The two cards that can be easily inserted and removed from the top are held relatively tightly, making them easy to handle without worrying about them falling out. If the design accommodated a larger number of cards, they would be more likely to fall out when only a few are inserted.
Top layer: The four cards inserted and removed from the side are suitable for cards you use less frequently than the two in the bottom layer but want to carry with you at all times.
How we designed the two-layered card holder with different insertion directions
In the diagram below, light blue represents the bottom layer and orange represents the top layer card holder parts. In reality, seam allowances and stitching margins are added to these parts, but the concept is to combine them in this way to achieve two-layered card holders with different insertion directions. We finally completed the design by separating the parts to be sewn from those not to be sewn, so that each layer does not interfere with the other. If you sew them in the wrong order, it will not work.
Twin coin pocket with divider
The standard divider found in the Tenuis zipper-type wallet is also included in the mini version. It prevents coins from bunching to one side and helps keep the wallet from bulging awkwardly. Because the pocket is small, spreading the coins evenly throughout it helps keep it flatter.
Bill compartment designed to the minimum width for storing bills without folding them
We designed the bill compartment to the minimum width required to fit bills, adding just enough extra room for easy insertion and removal. The stitching on the coin pocket end is designed not to narrow the bill compartment. This is because in a standard construction where layered materials are sewn from the top, the space from the edge of the material to the stitching line would be wasted.
Two hidden pockets
We adjusted the Tenuis hidden pockets to fit the mini version. They can hold up to four keys or other small items. It is rare for such a minimalist wallet to have hidden pockets, allowing you to store receipts, tickets, keys, and other small items in addition to cash and cards.
※Because the height of the wallet itself is almost the same as the long side of a card, standard cards cannot be placed in the hidden pockets like they can in the regular Tenuis.
Materials
Exterior: Toscano Liscio (Conceria 800)
This is vegetable-tanned cowhide leather made by the Italian tannery Conceria 800. As an oiled leather that holds plenty of oil, it features a supple feel and a smooth appearance. With continued use, friction will enhance its luster and deepen its color.
Interior: Goatskin
We use rare goatskin. Because its fibers are densely intertwined, it is strong against tearing and pulling even when made thin, allowing it to withstand daily use. It is supple and soft, with the beautiful grain pattern unique to goatskin.
“Tenuis” means “thin” in Latin.
Development Background and Process
SOLAHANPU has focused on wallets that push the limits of thinness, starting with the Tenuis series. However, even though minimalist, compact wallets are currently gaining attention, we had never made a mini wallet. When we considered that many users may also want smallness along with thinness, we decided to develop a wallet that pursued small size while maintaining the thinness of the original Tenuis as much as possible. Although its storage area is smaller and it is slightly less thin than the regular Tenuis, we have still made it as thin as possible.
Scaling down the construction itself was not difficult. First, we set the minimum width required to fit bills, but the card holder gave us pause. Simply reducing the area of the Tenuis twin card slot by one card’s worth would leave unnecessary empty space. We spent a long time trying to find an answer through paper models and prototypes, wondering whether to make this empty space a flip-style hidden pocket or a locking mechanism for closing the wallet.
We finally arrived at this two-layered card slot construction. However, finishing the two-layered card holder without waste, with different insertion directions that do not interfere with each other, required considerable ingenuity, and after much thought, we finally arrived at this design.
Important Notes
※The detailed design and construction may change without notice.
※The colors and patterns in the photos may look different from the actual product, so please use them as a color reference only.
※The delivery period after the campaign ends is only an estimate, and delivery may occur earlier or later depending on circumstances.
Color Options
- Jet Black
- Indigo Blue
- Dark Green
Jet Black
Indigo Blue
Dark Green
Specifications
| Item | Details |
|---|---|
| Materials | Italian vegetable-tanned cowhide leather, goatskin |
| Dimensions | 88 mm (H) × 82 mm (W) × 8 mm (thickness when empty and folded) |
| Recommended capacity | 10 bills, 6 cards, 10 coins, 4 keys |
※It is possible to store more than the recommended amount, but the shape may be distorted or items may not fit well.
Example of storage and thickness: 10 bills, 10 coins, and 6 cards will result in a thickness of approximately 16 mm to 18 mm at its thinnest and thickest points.
Reward Types
Super Early Bird 10% OFF: 13,320 yen, limited to the first 30 people
(Tax and shipping included within Japan; flat international shipping fee of 1,000 yen including tax)
Early Bird 5% OFF: 14,060 yen, limited to the first 30 people
(Tax and shipping included within Japan; flat international shipping fee of 1,000 yen including tax)
Special Campaign Price: 14,800 yen, no limit on the number of people
(Tax and shipping included within Japan; flat international shipping fee of 1,000 yen including tax)
※After the crowdfunding campaign ends, we plan to sell the product at a higher price than the campaign price.
Planned retail price: 15,800 yen or more
For inquiries, please contact support@solahanpu.com,
or visit our contact form .