【04: Ridge flow shirt]
. comfortable to the touch and hard to sweat cold.
-Next, the Ridge Flow Shirt. Why did you pick this one up?
Ishikawa: There are many quick-drying T-shirts, but this is my favorite model among them. I wear it very often.

Men's Ridge Flow Shirt" ¥8,800
-What makes this T-shirt unique?
Ishikawa: Sweat chill is the worst enemy in trail running . This T-shirt not only dries quickly and is highly breathable, but also keeps you from getting sweaty.
-The texture of the fabric is nice.
Ishikawa: The 100% recycled polyester jacquard weave fabric is smooth to the touch. You can wear it comfortably all the time for a long time.

A sleeveless shirt, circa 2003, personal possession of Mr. Ishikawa . The material used for the fabric was "Aerius Knit" and the texture was similar to the current "Ridge Flow Shirt".