20 years of full-throttle pedaling. Thanks to all of you, we’re celebrating a milestone 20th birthday!
In 2026, Circles finally reached the major milestone of our 20th anniversary.
Since we started in 2006, we’ve been pedaling furiously, sprinting through these 20 years at full throttle. Looking back, so many communities have been born under the Circles banner, and we have shared such incredibly rich moments with all of you.
“Have we really gotten through to everyone about what we’ve done and the value of the Circles name?”
While repeatedly asking ourselves that, we decided to make a “Logo Tee” as a warm-up for our long 20th-anniversary celebration.

Packed into this logo is our overflowing gratitude—a love letter from us to you—for the friends who have ridden with us and all the customers who have supported us, saying:
“I’m so glad Circles exists!”
“Let’s keep rolling together!”
We chose CHAMPION
For the body of such an important T-shirt, we chose the reliable CHAMPION.
We’ve collaborated with CHAMPION on T-shirts, sweatshirts, and hoodies before, but the reason we choose them isn't just because of their famous name.
Founded in the U.S. in 1919, CHAMPION is a brand that has stayed close to the daily lives of active people as sportswear and team wear. Wash it, wear it, wash it again. The toughness that lets you do that, and the comfort that lets you slip it on without a second thought. I believe it’s because they’ve built that up over more than 100 years that the name CHAMPION carries such weight.

Just because it’s a commemorative T-shirt, we didn't want it to be something you only wear on special days. Wear it while working on your bike. Wear it after a ride. Wear it on a day you drop by the shop. When it gets sweaty, wash it and wear it again the next weekend. There’s something great about a T-shirt that you can use heavily in your daily life, and that gradually becomes your own.
If we were going to put the Circles logo—which has spanned 20 years of time—on something, we felt that a CHAMPION body, which has likewise remained a staple in people’s lives for just as long, was the most fitting choice.

In fact, the Champion body is highly regarded by our staff as well.
It’s nicely sturdy without being too heavy. The dry texture against the skin feels great, and it’s the kind of reliable fabric that makes you want to wear it hard, even in the summer.
About the Sizing
The silhouette is a relaxed fit with generous width in the body and sleeves, but with a perfectly balanced, slightly shorter length. It’s casual, yet somehow looks just right—we really love this balance.
| Size | Shoulder | Chest | Length | Sleeve |
|---|---|---|---|---|
| S | 51.5 | 53 | 61 | 16.5 |
| M | 53.5 | 55 | 64 | 17.5 |
| L | 56 | 57 | 67.5 | 18.5 |
| XL | 58.5 | 60.5 | 71.5 | 19.5 |






CHAMPION 16s/1 T-Shirt
Color : White x Sim Works, Beige x Circles, Black x Circles, Grey x Circles, Black x Sim Works, White x Circles
Size : S, M, L, XL
Material : 100% Cotton
Price : ¥6,930 (Tax included)
RAL Tabby Socks 2026
Tabby Socks, which returned after being renewed last year, were a huge hit, so we’ve made them again this year!

Let’s review the updates.
・The thumb length is now longer! → Better compatibility with BEDROCK SANDALS.
・Increased Merino wool blend! → Even richer wool, organic comfort.
・Globally compatible(?) graphics! → Look closely, it says “Right + R” and “Left + L”...?

The popularity of these is right up there with Champion. They might be the gear our staff wears and repeats the most.
The secret is definitely the wool base. The moisture-wicking properties of wool keep your feet at the perfect humidity, and you’ll feel the benefit of its natural deodorizing effects!
Socks that stay in contact with your skin all day long are where you truly feel comfort. That’s why these “undergarments” can really boost your Quality of Life.

Here are the three new colors added to the lineup.



We followed the colors of the RAL MERINO WOOL CYCLING JERSEY released in April. Naturally, these colors reflect our own tastes quite a bit.

About the Sizing
| Size | S | M | L | XL |
| Women (inch) | 6-8 | 8.5-10.5 | 11-13 | – |
| Men (inch) | 4.5-6.5 | 7-9 | 9.5-11.5 | 12-14 |
| EU | 36-39.5 | 40-42.5 | 43-45.5 | 46-48 |
| CM | 23-24.5 | 25-27 | 27.5-29.5 | 30- |
RAL Tabby Socks 2026
Color : Gray x Black, Navy, Yellow x Red
Size : S, M, L, XL
Material:58% Merino Wool, 30% Cotton, 2% Nylon, 9% Polyester, 1% PU
Price : ¥2,420 (Tax included)

Because they’re classic items, we want you to have them!
The items Circles selects always have a clear reason and background for why they were chosen. In the same way, the items we “create” have their own thoughts and style poured into them. Naturally, we are confident in delivering all of them to you.
Both T-shirts and socks are classic, daily-use items. Even though they are classics, they are items we’ve crafted with love and no compromises, so please grab a pair, and use them to your heart’s content.