Ai Indigo Flannel 908 Grandpa Pullover Shirt

Inspired by vintage grandpa shirts, this square silhouette shirt features deep slits and a longer hem that can be easily tucked in or left out. It offers versatile styling for any occasion.

The flannel used is woven on an ancient and precious shuttle loom, so rare that it could be displayed in a museum. This slow, deliberate weaving process creates a fabric with a textured, handwoven appearance, offering a light and gentle feel against the skin. This flannel, which can no longer be produced in modern Japan, is a cherished material that we are committed to preserving and passing down through generations, embodying the essence of 45R's Japanese craftsmanship.