Japan Blue Jeans J301 Straight Fit 14.8oz

The J301 Straight Fit 14.8oz from Japan Blue Jeans belongs to the CIRCLE line, a collection designed to offer a more ergonomic approach to Japanese denim thanks to a curved waistband construction that enhances support and everyday comfort. Crafted from a robust 14.8oz Japanese selvedge denim, this model combines heritage authenticity, a timeless straight silhouette, and Kojima-based craftsmanship.

Features

• 100% cotton / 14.8oz
• Japanese selvedge denim made from American Texas cotton
• Sanforized / one wash
• Red selvedge ID
• Straight Fit
• Mid-rise curved waist
• Ergonomic curved waistband (CIRCLE)
• Natural leather patch
• YKK zip fly
• Copper button and rivets
• Chain-stitched hems
• Inner leg seam with signature blue stitching
• Made in Japan (Kojima, Okayama)

Description

With the J301 Straight Fit, Japan Blue Jeans offers a more classic and balanced interpretation of its CIRCLE line. This model focuses on a timeless straight silhouette while benefiting from the ergonomic construction of the collection, particularly its curved waistband designed to improve comfort and support throughout the day.

The 14.8oz Japanese selvedge denim is woven from American Texas cotton. Known for its strong and slightly irregular fibre, this cotton produces a fabric that is both authentic and full of character, capable of developing rich fades over time. The one wash treatment stabilizes the fabric while slightly softening its texture for immediate comfort.

A key feature of the CIRCLE line is its curved waistband, designed to naturally follow the body’s shape. This construction improves waist fit, eliminates rear gaps, and enhances comfort when sitting, while adding a modern touch to a classic silhouette.

The model features a Straight Fit, a traditional straight-leg silhouette offering an ideal balance between structure and comfort. Neither tapered nor loose, it delivers a natural drape that works well across most body types and styles.

Finishing details include red selvedge ID, copper rivets and button, YKK zip fly, reinforced stitching, and signature blue inner leg stitching. Every element is designed for durability and understated aesthetics.

Made in Kojima, Japan, this model perfectly embodies Japan Blue Jeans’ philosophy: creating authentic, durable, and modern denim designed to evolve beautifully over time while remaining easy to wear every day.

Fit & Sizing

• Straight Fit
• Mid-rise curved waist
• Comfortable thigh
• Straight leg
• Classic and versatile silhouette
• Enhanced comfort thanks to CIRCLE curved waistband
• We recommend taking one size up from your usual size

Why We Selected It

We selected the J301 Straight Fit for its versatility and perfect balance between tradition and modernity. Its timeless straight silhouette, combined with Japanese selvedge denim made from Texas cotton and the ergonomic CIRCLE construction, makes it an easy everyday denim essential. A clean, durable, and foundational piece for any denim wardrobe.