JM1

JP / EN / CN

QUALITY

Made in JAPAN.
Enjoy our soft, high-quality 100% cotton T-shirts.

Made in Japan! Good quality, safe and stable.

Pre-washed to prevent shrinkage and maintain stable sizing.

JM1 name label is removable.

Check stock availability anytime via the QR code on the label.

Experience the comfort of our premium 20/- single jersey fabric.

[JM001]　Short sleeve T-shirt【Discontinued / Limited Stock】

#01 Off-White
#02 Black (Garment dyed)

・20s Extra Dense Single Jersey
: 100% Cotton
・Sewing thread : 100% Cotton
・Side : Abutted seam

・Neck line : 2-needle stitch
・Cuff, hem : 2-needle stitch
・Shoulder-to-shoulder taping

※Note: There may be slight variations between individual items.
※Black: Sizes L/F to XL are garment-dyed; sizes 2XL to 3XL are fabric-dyed.
※We plan to transition entirely to fabric-dyed production.
※5 pieces per pack.

[JM002]　Long-sleeved T-shirt【Discontinued / Limited Stock】

#01 Off-White
#02 Black (Garment dyed)

・20s Extra Dense Single Jersey
: 100% Cotton
・Sewing thread : 100% Cotton
・Side : Abutted seam

・Neck line : 2-needle stitch
・Cuff Rib, hem : 2-needle stitch
・Shoulder-to-shoulder taping

※Note: There may be slight variations between individual items.
※5 pieces per pack.
※All Black items are fabric-dyed.

[JM003]　New material made in Japan T-shirt

#01 Off-White
#02 Black

・40s Extra Dense Single Jersey
: 100% Cotton
・Sewing thread : 100% Cotton
・Side : Abutted seam

・Neck line : 2-needle stitch
・Cuff, hem : 2-needle stitch
・Shoulder-to-shoulder taping

※Note: There may be slight variations between individual items.
【Lead Time】 ※Approx. 45 days from order date (Subject to consultation).
【Custom Colors】 ※Available for minimum orders of 80 to 120 pieces (approx. 1 roll) or more.
Depends on size. For details, please contact us by phone or email.
・#01 White(sarashi)
・#32 feather gray
・#119 gabbard gray
・#419 bluegrass
・#421 vanilla
・#836 ruby red

[JM004]　Ultra Heavyweight Made in Japan T-shirt

#01 White
#02 Off-Black

・Fabric Weight: Approx. 285 g/m² (approx. 8.4 oz/yd²)
・Yarn: 10s Open-End (BD) Yarn
・Structure: Ultra Heavyweight / Extra Dense Single Jersey
・Composition: 100% Cotton
・Side: Abutted seam

・Neck line: 2-needle stitch
・Cuff, hem: 2-needle stitch
・Collar Construction: Taped Neck and Shoulders

【Material & Fabric Details】
Made of 100% cotton, this ultra-heavyweight single jersey fabric is constructed with extra-dense knitting using 10s open-end (BD) yarn.
Weighing approximately 285 g/m² (8.4 oz/yd²), it offers a solid, durable texture with a crisp, dry hand feel.
Finished with shoulder-to-shoulder taping for enhanced durability around the collar.

Note: Individual differences may occur in sizing and feel.
【Lead Time】Approx. 45 days from order date (Subject to consultation)
【Custom Colors】Available for minimum orders of 80 to 120 pieces (approx. 1 roll) or more.
※Minimum order quantity (MOQ) depends on the size. For details, please contact us by email or phone.

【Material & Fabric Details】
Made of 100% cotton, this ultra-heavyweight single jersey fabric is constructed with extra-dense knitting using 10s open-end (BD) yarn.
Weighing approximately 285 g/m² (8.4 oz/yd²), it offers a solid, durable texture with a crisp, dry hand feel.
Finished with shoulder-to-shoulder taping for enhanced durability around the collar.

Note: Individual differences may occur in sizing and feel.
【Lead Time】Approx. 45 days from order date (Subject to consultation)
【Custom Colors】Available for minimum orders of 80 to 120 pieces (approx. 1 roll) or more.
*Minimum order quantity (MOQ) depends on the size. For details, please contact us by email or phone.

Order Products

Inquiry by phone　|　Inquiry by E-Mail

BLANK DENIM BODY

Customizable Ready-Made Denim Body Made in Japan

Developed in collaboration with a denim manufacturer in Kojima, Okayama, the birthplace of Japanese denim,
the first ready-made denim body in Japan was born.
With small lot production, you can create your own original denim.
In addition to washing, you can add extra value through custom details such as pocket embroidery and leather patches,
enabling full commercialization as original denim.
For inbound-focused product planning, we offer the finest denim.

[JM1 DENIM]　Denim Pants

#Dark Raw Denim — Available in 1 color

・Sizes:
M (30 inch)
L (32 inch)
XL (34 inch)
XXL (36 inch)

・Dyeing: 100% Pure Indigo Rope Dyeing

※Please note: The sizes shown are in the raw, unwashed state. After washing, the fabric will shrink by approximately 3%.
※Reference retail price: ¥25,000 (excl. tax) / Wholesale price: @¥13,000
※【Transaction Terms (Denim Only)】 Minimum order requirement: total wholesale amount of ¥100,000 or more per order.
※【Customization】 Washing, processing, embroidery, patches, etc. are available upon request and will be quoted separately.
※【First delivery scheduled】Scheduled for mid-February. After delivery, orders will be shipped within 3–5 business days if the item is in stock.

※Please note: The sizes shown are in the raw, unwashed state. After washing, the fabric will shrink by approximately 3%.
※Reference retail price: ¥25,000 (excl. tax) / Wholesale price: @¥13,000
※【Transaction Terms (Denim Only)】 Minimum order requirement: total wholesale amount of ¥100,000 or more per order.
※【Customization】 Washing, processing, embroidery, patches, etc. are available upon request and will be quoted separately.
※【First delivery scheduled】 Scheduled for mid-February. After delivery, orders will be shipped within 3–5 business days if the item is in stock.

Order Products

For denim inquiries by e-mail
(Contact: Kuriyama)

JAPAN MADE

Craftsmen in Japan

JM1 products are created through
the craftsmanship of diverse artisans throughout Japan.

Dyeing

We are one of the few dyeing factories in Tokyo.
With our refined techniques, we specialize in dyeing natural fibers such as cotton, wool, and silk, as well as their blends.
Through a range of specialized finishing processes, we create distinctive textures and qualities for you to truly experience.

Print・Embroidery

Our domestic sewing factory is equipped with advanced printing and embroidery machines, allowing us to handle a wide range of techniques. From silkscreen, inkjet, and DTF to name, 3D, and appliqué embroidery, our skilled team supports the creation of unique, high-quality products with creativity and expertise.

Sewing

With over 40 years of experience, we create quality products made in Japan.
Though small in scale, our craftsmanship and flexibility have also led us to work with renowned luxury brands. Each item is carefully finished by our artisans, offering a beautiful silhouette and reliable quality you can enjoy for years to come.

COMPANY

Company

Maruichi Co.,Ltd

CEO

Hiroyuki Ichinose

Shibuya Address

2F, 3-26-5, Sendagaya, Shibuya, Tokyo, Japan
TEL 03-6438-1874 / FAX 03-6438-1878

Kawaguchi Address

3-10-30, Nishiaoki, Kawaguchi, Saitama, Japan
TEL 048-299-6797 / FAX 048-299-6795

Official Website