Momotaro Jeans 'Going to Battle' 15.7oz: Decoding the Specifications of Kojima's Super Low-Count Selvedge

Momotaro Jeans ‘Going to Battle’ 15.7oz: Decoding the Specifications of Kojima’s Super Low-Count Selvedge

1. Introduction — Why This Item is Culturally Significant

In Japan’s denim industry, Kojima, Okayama Prefecture, stands as an unshakeable sacred ground. Among the countless brands that have made their names known to the world from this region, “Momotaro Jeans” shines with a unique brilliance. The 15.7oz model from their “Going to Battle” (GTB) line, in particular, is an exquisite piece that encapsulates the brand’s identity and relentlessly captivates denim enthusiasts.

The cultural significance of these jeans extends beyond mere high-quality denim. They are a true embodiment of “Kojima Jeans” in the modern era, a fusion of Kojima’s history stretching back to the dawn of Japanese jeans manufacturing, the technical expertise cultivated by their parent company, Japan Blue Inc., as a fabric manufacturer, and the local folklore of the “Momotaro Legend” rooted in Okayama Prefecture. The 15.7oz heavy ounce, the super low-count (thick count) yarn, and the brand’s iconic “Momotaro Selvedge” and “GTB Stripes” are not just design elements; they are the crystallization of the brand’s philosophy and craftsmanship, playing a part in narrating the evolution of Japanese jeans production.

2. Historical Background — Birth Year and Brand Context

The Momotaro Jeans brand was born in 2006. However, its parent company, Japan Blue Inc. (formerly Ai-kobo), was established in Kojima, Okayama Prefecture, in 1992. Initially, the company focused on denim fabric manufacturing and OEM (Original Equipment Manufacturer) production, establishing a solid reputation within the industry for its reliable technical capabilities.

Kojima has developed as the central hub for Japanese jeans manufacturing since the late 1960s. Starting with BIG JOHN’s M1002 First Model in 1968, numerous brands have spun their history of jeans production in this area. Against this backdrop of Kojima’s rich jeans manufacturing history and culture, Japan Blue Inc. launched its own brand, “Momotaro Jeans.”

The brand name “Momotaro” is, of course, derived from the “Momotaro Legend,” a folktale said to be set in Okayama Prefecture. This story connects to various design motifs of the brand, such as the “Momotaro Ear” (pink ear) selvedge and, as will be discussed later, the GTB stripes.

The “Going to Battle” (GTB) label is positioned as the flagship collection within Momotaro Jeans, serving as the brand’s face. The term “Going to Battle” embodies the brand’s spirit of “facing the battle” and the wish for the denim to be tough enough to “fight through” various everyday scenarios.

3. Structural Details — Selvedge, Hardware, Stitching, Silhouette

The most distinctive features of the Momotaro Jeans ‘Going to Battle’ 15.7oz model lie in its material design and details.

• Fabric Specifications:

  • Ounce: 15.7oz. This is heavier than typical heavy ounce denim (13-14oz), creating a more rugged texture.
  • Cotton: Zimbabwe Cotton is used for both the warp and weft yarns. Zimbabwe Cotton is characterized by its long staple length, and when combined with thick yarn counts, it imparts a unique three-dimensionality and stiffness to the fabric.
  • Yarn Count: Both warp and weft use 6-yarn count. Yarn count is a unit indicating the thickness of the yarn; a smaller number means a thicker yarn. While typical jeans use yarn counts around 7-10, a 6-yarn count is clearly a thick “super low-count” yarn. The use of these thick yarns provides the fabric with robust durability, a vintage-like rough, uneven texture, and the potential for prominent vertical fading.
  • Dyeing: It is Indigo dyed through Rope Dyeing, leaving a white core in the center of the yarn. This allows for unique aging (vertical fading and wear marks) as the indigo fades with wear.
  • Processing: It has undergone one-wash sanforized processing. “One-wash” refers to a single wash, and “sanforized” means the fabric has been shrunk (Sanforized process) to minimize excessive shrinkage after purchase and provide stable sizing.

• Selvedge:

  • Momotaro Ear (Pink Ear): This is one of Momotaro Jeans’ most iconic details. While normally selvedge is in red or green, Momotaro Jeans, inspired by the “peach” in its brand name, uses pink colored selvedge. This pink line, glimpsed when the hem is cuffed, clearly differentiates it from other denims.

• Hardware:

  • Buttons: The front features a button fly with original buttons engraved with the brand’s logo. Some models may incorporate iron buttons, showing variations in material.
  • Rivets: Sturdy rivets are placed throughout to enhance the jeans’ strength.
  • Patch: A leather patch is affixed to the back yoke, and its transformation into a caramel color with age is part of the appeal.

• Stitching:

  • GTB Stripes: On the right back pocket only, two white painted lines (GTB Stripes), symbolic of the brand, are hand-painted. These are the initials for “Going to Battle” and evoke the image of Momotaro setting off for Onigashima (Ogre Island). As each is hand-painted, slight individual differences occur, adding to their charm. Some models feature variations of these stripes in pink or light indigo.
  • Pink Inseam: The stitching thread along the inseam uses the brand color, pink. This detail, separate from the GTB stripes, is also derived from the peach motif.

• Silhouette:

  • The “Going to Battle” label offers various silhouette models. Representative ones include the tight tapered 0701 series, the super slim fit 0705SP, and the 7005SP. These Lot numbers indicate different silhouettes and fits, allowing for selection based on individual body type and preference.

4. Authenticity & Age Identification (Vintage vs. Replica)

The Momotaro Jeans ‘Going to Battle’ 15.7oz model is a relatively recent item, and there are generally few significant discrepancies in design or specifications between current models and early lots. Therefore, it’s more a comparison between “early lots” and “current lots” rather than “replica” versus original.

• GTB Stripes: While early lots primarily featured white paint, variations in pink and light indigo were later introduced. There might be slight changes in the timing of these color introductions and the touch of the paint (thickness, fading).
• Selvedge: The Momotaro Ear (pink ear) has been consistently used as the brand’s signature since its early days.
• Patch & Labels: Minor changes may have been made to the patch design, material, and the text on internal labels depending on the lot.
• Fabric Feel: The 15.7oz heavy ounce and 6-yarn count specifications are central to the brand and have been continued, so the fabric’s texture itself is unlikely to have changed significantly. However, it cannot be ruled out that subtle variations in Zimbabwe Cotton supply or spinning technology might influence the fabric’s appearance.

Generally, the kind of significant specification changes based on production time and the “character” arising from early production instabilities, often seen in vintage denim, are limited in current and early lot items from newer brands like Momotaro Jeans. Rather than authenticating a replica, focusing on these details can serve as a reference for estimating the “production period” of a specific model.

5. Notable Appearances and Cultural Context

Given that Momotaro Jeans began its full-scale development relatively recently in 2006, it does not necessarily have a multitude of “classic” cultural appearances. However, within the contemporary American casual scene and denim culture, it has established a firm position.

• Denim Media & Influencers: It is frequently featured in prominent overseas denim media and retailers such as Heddels, Denimhunters, Long John, Clutch Cafe, Okayama Denim, and Blue Owl Workshop, as well as in Japanese Amet-kaji magazines like Lightning, Free & Easy, and 2nd, where its quality and originality are showcased.
• Denim Enthusiasts: It is supported by denim enthusiasts worldwide for its toughness and unique designs, with extensive sharing of wear reports and aging progress on social media.
• Kojima Jeans Lineage: As a “second generation” brand of Kojima jeans from the 2000s onwards, following pioneering brands like BIG JOHN RARE (1983), Momotaro Jeans represents one of the modern Kojima-based brands’ operational models through its “integrated in-house manufacturing” where Japan Blue Inc. handles everything from fabric to sewing.

6. Current Availability (Vintage Market & Replica Brands)

Due to its popularity, the Momotaro Jeans ‘Going to Battle’ 15.7oz model is still available for purchase new.

• Official Online Store & Direct Stores: It can be purchased new from the official Momotaro Jeans website, their directly managed stores nationwide, and authorized retailers.
• Select Shops: It is also carried by many denim and American casual select shops both domestically and internationally.
• Vintage Market: Although it is a relatively new brand, early lots or limited edition models that have already been discontinued can sometimes be found on flea market apps like Mercari and Yahoo Auctions, or on overseas second-hand denim stores. However, these are traded as “used items” or “early lots” rather than “replicas.”

7. Conclusion

The Momotaro Jeans ‘Going to Battle’ 15.7oz model transcends the definition of a mere pair of jeans, embodying contemporary denim culture by weaving together the history of Kojima’s jeans manufacturing in Okayama, the technical prowess of Japan Blue Inc., and the local narrative of the Momotaro Legend. The 15.7oz heavy ounce, the 6-yarn count using Zimbabwe Cotton, and the brand’s iconic Momotaro Ear Selvedge and GTB Stripes imbue these jeans with unparalleled individuality and an allure that makes one want to wear them for years to come.

Carrying the brand’s spirit of “Going to Battle,” this pair will undoubtedly continue to be a companion for many denim enthusiasts, accompanying them through life as they age and develop their own unique character. By understanding the craftsmanship and stories embedded in each and every detail, the charm of Momotaro Jeans deepens even further.