Japan Blue Jeans
In 2019, Japan Blue Jeans are still eager to step into the next stage of refined denim. ‘CIRCLE’ is their latest series. The ‘Jeans of a new dimension’, featuring the best fit around a waist, are now available. This pair of jeans adopted ‘a curve belt’, which perfectly fits with any ordinary Japanese waist. Japan Blue Jeans have also selected the best four shapes: classic straight, straight, tapered and skinny. Furthermore, the ultimate jeans are completed by choosing a textile out of four types of cotton, based on a locality, ounce weight, and selvage quality.
‘CIRCLE’ is returning to its root in Japan by being evolved in Europe. JAPAN BLUE JEANS will be progressing with a ‘Made in Kojima’ quality by our extensive experiences acquired around the world.
Type #2 Tapered



Type #3 Straight



Type #4 Classic Straight


Type #5 Loose



*all selvedge
Japan Blue Summer Collection 2022
Japan Blue Summer Collection 2022








Each Fabric Detail of ‘CIRCLE’ Straight by Japan Blue Jeans
Jeans of a New Dimension
With the recently released series of ‘CIRCLE’ Jeans, Japan Blue is pioneering the next stage of refined denim. The jeans have adopted a curved waistband in order to fit perfectly around the waist. It will allow for greater comfort and an improved silhouette starting from the waist. The jeans also feature pocket bags, made of thick cloth, and branding which refers to the CIRCLE line. And as to be expected, the jeans still feature all Japan Blue’s signature details like a tanned leather patch, royal blue inseam and branded doughnut-shaped buttons.
This new line is referred to as ‘ultimate jean’ which in addition to an enhanced fit, made from the finest fabrics which are carefully woven on vintage shuttle looms in Kojima. With this new line, Japan Blue Jeans are sticking to their Japanese roots and denim heritage, while paying homage to the brands’ evolution in Europe. CIRCLE is the result of years of co-operation between Japanese denim masters and European denim designers.
‘CIRCLE’ Straight by Japan Blue Jeans
Today, we will introduce each fabric detail of ‘Circle Straight’ as Japan Blue Jeans’ latest collection.



As the name of straight is, it is a silhouette that falls neatly to the hem, but it doesn’t give too wide impression with a slightly tapered silhouette.
There are 4 types of fabric:
- J301 Circle Straight 14.8oz American Cotton Vintage Selvedge Jeans Rough and strong slab. After wearing, this fabric will still be hard made with rough material (old vintage style).
- J304 Circle Straight 12.5oz African Cotton Vintage Selvedge Jeans
Using African cotton with a long yarn length for both warp and weft. Soft and natural fading. - J401 Circle Classic Straight 14.8oz American Cotton Vintage Selvedge Jenas
Made from Texas to make a rough and stubborn fabric.
By spinning this American cotton slightly stronger, the strength is further increased.
The shape of the unevenness is also a little intensifying. By putting the thread into the limit, we have created a “thread for jeans” that retains its hardness even when worn.
Expect softer fabric after some wearing depending on the fabric model.
You can also enjoy the beautiful ageing that will only go better after some time.


