The design details are very appealing, but unfortunately, the shoes aren’t very suitable for people with high arches or wide feet.

As stated on the official website, users with high arches or wide feet are advised to go one centimeter up in size. I normally wear 29 cm (and I also got size 29 cm for the OAO Auth series, which fits just right). However, due to an overselling issue on the website, the color and 30 cm size I wanted were unavailable, so I took a chance and went with this 29 cm pair instead.

The result: at first, the shoes rubbed against my feet and felt narrower than expected, making them quite tight lengthwise. As for the arch area, although there’s Velcro for adjustment, the strap tends to lift up because it’s rather stiff when worn by someone with a high arch.

I hope future updates will offer more flexibility in larger sizes — for example, more stock in size 30 cm or half-size options beyond that.

Although the fit could be more comfortable (and maybe it just needs more time to break in), overall I still find the design striking and futuristic.

OAO SHELL for ADVANCED RESEARCH.
展示会時お邪魔して、Iianから直接話を聞いて購入しました。
これまでにないデザインがカッコよく、履き心地も最高です。履き始めは少しタイトでしたが、アドバイスいただいた通り、前回と同じサイズで購入したところ、数日で履き口が馴染んで履きやすくなりました。
青の差し色が効いていて、履いていると色々な方に「どこの？」と声をかけられます。

デザイン、フォルムともに気にいっております！