Crafted in Japan from an ultra-dense 14.5oz fabric, the UES Heavy Flannel Shirt stands among the heaviest flannels available worldwide. Woven on vintage shuttle looms in Okayama, the shirt features a rugged, textured exterior and a softly brushed interior for superior warmth and comfort. What sets this version apart is its unique color. Both the warp and weft are made from indigo rope-dyed yarns, allowing the shirt to develop beautiful, personalized fading over time—a hallmark of true indigo garments. At evenly spaced intervals, fine white threads are passed through the warp, creating a subtle yet striking dotted stripe pattern that adds visual depth without overwhelming the classic silhouette.

Every detail of this flannel reflects master craftsmanship. From the spinning and reactive dyeing of the yarns to the weaving, cutting, and sewing—each step is meticulously executed in Japan. The result is a shirt built to last, with rolled seams and double chain-stitching ensuring long-term durability. The check pattern, made with thick warp and weft threads, delivers a striking contrast of bold and subtle tones, anchored by white lines for depth and character.

The fabric offers just the right amount of movement and drape despite its weight, making it surprisingly comfortable to wear. Thoughtful touches like acorn-shaped chest pockets and natural ivory palm nut buttons add refinement to this rugged essential.

Fit Notes: UES flannel shirts tend to run small compared to American sizing. Due to their Japanese sizing and slim fit, we typically recommend sizing up. For example, if you usually wear a Medium in American brands, a size 3 (Large) in this shirt should provide a good fit. However, we always recommend checking our size chart to ensure the best fit for you.