"Jidai" is a brand and project that takes unused materials and materials for prototypes, adds new designs and ideas to increase their value (i.e. upcycles), and turns them into works of art and products.

"Jidai" is run by waji, a manufacturing group that produces leather wallets and small leather goods. Waji interprets one of the goals set out in the "SDGs" (Sustainable Development Goals) adopted at the United Nations Summit in September 2015, "Responsible Consumption and Production," in their own way, and strives to create products that customers truly want.



This series using tennis ball fabric makes use of prototype tennis ball fabric that had been lying dormant in the warehouse of Hiraku Spinning, a fabric manufacturer in Sakai City, Osaka Prefecture.
Taking advantage of the vivid coloring and sufficiently strong fabric, we recycle them into unique items.

*Dust, hair, etc. may easily adhere to the surface.
Please remove it with an adhesive cleaner or clothes brush before use.

A unique backpack with a curved shape that lets you enjoy the texture and vibrant colors of a tennis ball.

A unique form created by smooth curves.
The calculated asymmetrical lines subtly enhance the individuality of the wearer.
It's not just a bag; its high level of design is what makes it so appealing.

This bag is made from prototype materials generated during the development of the official tennis ball.
It is made from upcycled tennis ball fabric provided by a fabric manufacturer in Sakai City.
Although the fabric is thick and sturdy, the surface is soft and has a unique firmness and elasticity. The appeal of this material lies in its presence when held and its unique texture.

The felt material is made from compressed polyester and nylon, making it resistant to wear and tear and highly durable.
Taking advantage of these characteristics, it has been reborn as an item for everyday use.

There is one pocket inside, and a foil-stamped leather tag made of the same material as the belt adds a nice touch.

There is also an asymmetrical pocket on the outside with a magnetic closure.

The belt is made of thick genuine leather, giving it a sturdy finish.

The bottom gusset is approximately 13.5cm.

It can also stably carry thick items such as 500ml bottles and lunch boxes.

The shoulder strap and brand tag are made from waji's original tannin-tanned cowhide leather.
It is 3mm thick and sturdy enough to withstand prolonged use.
The "warmth of handcrafted work" that is evident in the leather's texture and finish adds a subtle accent to the bag.

It can fit A4 size documents, so it's recommended as a school bag. It also makes a stylish mother's bag. The bottom gusset is sturdy, so you can store your lunch box or water bottle upright.

The neon yellow and natural beige genuine leather add a touch of casualness. The subtle color combination brings the whole bag together in a gentle way.

Just put your luggage in and put it on your back, and the shoulder straps will be pulled,
The bag will close automatically.

The vivid yellow and soft curved design will definitely add a touch of style to your outfit. And it's made from tennis ball fabric!

The combination of soft texture and pop colors creates a unique presence.

Simply add it to a simple outfit and you'll look like a sophisticated fashion expert.
It's refreshing in the summer and a great accent color for darker outfits in the winter. It's a great ally for those days when you feel like something's missing.

"This is the material tennis balls are made of."
It's unique in that way that it becomes a bit of a talking point.

It's not just a pretty bag.
This is an item that allows you to make slightly more environmentally friendly choices in your daily life.

Not only can you use it for yourself, but it also makes a great gift for birthdays, anniversaries, job offers, Christmas, White Day, Mother's Day, etc.
A great gift for someone who loves tennis...

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If an item is out of stock, it will be produced after your order is placed, and delivery may take up to two months. If you have any questions about stock availability or arrival dates, please feel free to contact us.

・Due to the characteristics of the felt material, dust and hair may easily adhere to the product. Please be especially careful when storing the product with dark-colored clothing or fabric products.

- If you gently clean it with an adhesive cleaner (roller) or clothes brush, you can enjoy using it for a long time.

・Since we use genuine leather, there may be slight differences in color from the product image. Please note that this is a characteristic of natural materials.

・Avoid storing in places with high temperatures, humidity, or direct sunlight. If it gets wet, dry it with a soft cloth and dry it in the shade. Avoid washing it in water or hot water.