Vinchy AI Review · Jeans

J301 Circle 14.8oz Washed Selvedge Denim

Japan Blue's jeans release enters Vinchy's AI lab for a closer look at fabrication, fit, and care notes.

Tagged at $215, quality lands at 90/100, comfort at 50/100, and sustainability at Not Available for discerning shoppers.

Price · $215
Quick take: J301 Circle 14.8oz Washed Selvedge Denim from Japan Blue delivers 90/100 craftsmanship, 50/100 comfort, and Not Available sustainability for jeans seekers.
  • Brand · Japan Blue
  • Category · Jeans
J301 Circle 14.8oz Washed Selvedge Denim hero visual

AI scorecard

What matters most for shoppers researching this piece right now.

Verdict: J301 Circle 14.8oz Washed Selvedge Denim by Japan Blue balances 90/100 build, 50/100 wearability, and Not Available responsibility—solid for jeans seekers wanting a rounded profile.
90 Quality

Craftsmanship, stitching, and long-term durability.

50 Comfort

Movement, breathability, and day-long wear.

Not Available Sustainability

Environmental impact and responsible sourcing.

Brand Japan Blue
Price $215

Attribute deep dive

We break down what drove each score so you can weigh trade-offs.

Quality Analysis 90/100

This denim is built for the long haul, featuring a substantial 14.8oz weight and the added tensile strength of short staple American cotton, which is specifically noted to enhance durability and fading potential. The use of custom engraved buttons and rivets further suggests quality construction designed to withstand regular wear.

Comfort Assessment 50/100

The comfort score is low because the garment is made from 14.8oz heavyweight denim, which is inherently rigid and lacks any mention of stretch or adaptive fit features. The material is 100% US cotton, which, while natural, is not specified as a premium soft variety.

Sustainability Impact Not Available

This garment lacks specific sustainability indicators, such as certified organic or recycled materials, making it impossible to grade its environmental impact based solely on the provided text.

Measurement breakdown

Measurements across available sizes.

SizeWaistThighKneeLeg OpeningInseamRise
3180.6 cm57.7 cm21 cm17.5 cm82.5 cm27.9 cm
29
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38
Find out your size. Add your body measurements in the Vinchy app to see which size fits you best.
32
Find out your size. Add your body measurements in the Vinchy app to see which size fits you best.
30
Find out your size. Add your body measurements in the Vinchy app to see which size fits you best.
36
Find out your size. Add your body measurements in the Vinchy app to see which size fits you best.
33
Find out your size. Add your body measurements in the Vinchy app to see which size fits you best.
34
Find out your size. Add your body measurements in the Vinchy app to see which size fits you best.

Garment details

Need-to-know info pulled from the retailer’s description, sizing notes, and care callouts.

Crafted using short staple American cotton, Japan Blue's Circle denim fabric is modeled after vintage fabrics dyed a deep indigo color. American short staple cotton gives the fabric a light slub texture with added tensile strength, allowing for a quicker and higher contrasting fade patterns. Woven on vintage shuttle looms, Japan Blue's Circle line is their reimagining of easy to wear classics designed for everyday wear. The denim will develop prominent creasing and fade patterns with wear, while the classic indigo color will brighten to reveal a light blue after repeated washes. Equipped with a custom branded leather patch and signature Japan Blue details.

Short staple American cotton

14.8oz sanforized raw selvedge denim The Straight Tapered fit features a medium rise, slim thigh, and strong taper in the lower leg

Washed and distressed Indigo dyed warp with white weft Custom engraved button and rivets Zipper fly Canvas pocket bags Hidden coin pocket selvedge Custom branded cowhide leather patch Signature Japan Blue inseam stitching 100% US cotton Made in Japan

Need-to-know
  • Brand: Japan Blue
  • Category: Jeans
  • Price: $215
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