Open-collar shirts perfect for fall. The first-ever custom collaboration between Biotope and Pendleton is here.

Now that autumn weather has truly set in, shirts are exactly what I want to wear. Just in time, a piece that really catches my eye has arrived.

PENDLETON, long beloved as an American classic, and BIOTOP, which offers a sophisticated lifestyle—this is their first-ever collaborative item.

38,500 yen

The open-collar shirt being released this time is made from high-quality wool-nylon fabric produced in Bishu, a region renowned for its woolen textiles. By blending nylon with wool—known for its excellent heat retention and soft feel against the skin—we’ve achieved an elegant, understated matte finish and supple drape. The fabric has just the right amount of body, maintaining its silhouette well when worn and creating a beautiful drape.

Another key feature is the relaxed, straight-cut box silhouette, which offers a wider body width than the standard size in the Inline line. The collar features a wide spread and is crafted with soft interlining to create a relaxed, open-collar look.

While the colors and patterns are based on the Pendleton archive, they have been reimagined into a color palette that balances a bold presence with a sense of calm—a special finish exclusive to *Biotope*.

Rapper WILYWNKA was featured in the main visual.

It comes in two colors: blue and beige. Pre-orders will begin on “BIOTOP ONLINE” on Friday, October 23, and the product will go on sale at all stores starting Saturday, November 7.