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Concept

High-quality sunglasses that Koichi Yamadera wants to wear all the time.

Sunglasses (eyeglass frames) produced by Yamadera Koichi.
These sunglasses (eyeglass frames) were created over the course of a year, with Yamadera Koichi himself paying particular attention to the color, pattern, and comfort of the glasses, and after numerous meetings with Yabushita, a general trading company for glasses.

Product

The design was created from scratch while adhering to Yamadera Koichi's image of a "square plastic frame."

Comes standard with UV-cut lenses that transmit less than 0.1% of UV rays. These light gray lenses give a calm impression.
Prescription lenses available: If you need prescription lenses, you can bring the frames to your local eyeglass store and have the lenses replaced (or purchased).

The inside of the temple is printed with "Koichi Yamadera EYEWEAR".
The Y and WEAR printed in red was one of Yamadera Koichi's ideas.

The metal fittings connecting the front (where the lenses go) and temples (the parts that rest on the ears) feature a subtle Y design by Yamadera Koichi.

The backside is made of beta titanium, which has flexible spring properties, ensuring a comfortable fit.

There is a metal part attached to the tip of the temple. This metal part is inspired by Yamadera Koichi's "mountain" and also serves to balance the weight of the front (the part where the lens is placed).

Cloth & Case

Comes with an autographed eyeglass cloth and original case.

This original eyeglass cloth measures 140mm x 200mm and features a signature print of Koichi Yamadera.
Original case measuring 160mm x 50mm x 36mm with logo.

Comment

Comment from Koichi Yamadera

To commemorate the 40th anniversary of Koichi Yamadera's debut, we have produced the original sunglasses (eyeglass frames) "Koichi Yamadera Eyewear."


We're proud of this product, which we've taken the time to create, paying particular attention not only to the color and design but also to the comfort of wearing it.


Why don't you try on some matching sunglasses (eyeglass frames)?

Limited quantity available now!!

Sunglasses produced by Koichi Yamadera "Koichi Yamadera EYEWEAR"

Release date: Wednesday, October 1, 2025
Price: 22,000 yen (tax included)
Free shipping within Japan

*Sales will end once the planned quantity is reached.
*Cancellations or changes cannot be accepted after purchase.
*Depending on the situation, we may accept a second round of reservations.
*Product images are for illustrative purposes only. The actual product may differ in design and specifications.

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