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RIO BIANCO
有限会社リオ・ビアンコ
A domestic shirt sewing factory based in Shirakawa, Fukushima, specializing in woven shirts such as dress shirts, button-down shirts, and kariyushi wear. RIO BIANCO is strong in technically demanding shirtmaking processes that affect appearance and comfort, including collars, cuffs, sleeve attachment, fine rolled hems, and dense stitching. Publicly confirmed track records include United Arrows, Maker's Shirt Kamakura, and past Ralph Lauren button-down shirt production, making it a good OEM candidate for brands that prioritize quality, refined details, and premium finishing over low-cost mass production.
Order overview
- Minimum order
- Needs confirmation
- Sample
- Custom quote
- Lead time
- Needs confirmation
Terms vary by specifications and quantity. Confirm current details when inquiring.
Items and categories
Order fit
Supported products
- Men's dress shirts, button-down shirts, and woven shirts for brands
- Kariyushi wear, uniform shirts, and potential support for women's blouses or woven tops
Best for
- Brands that care about refined shirt details such as collars, cuffs, sleeve setting, rolled hems, and dense stitching
- Teams seeking quality-focused domestic production for dress shirts, button-down shirts, or kariyushi-style products
Checks before inquiry
- Material sourcing, logistics, storage, MOQ, lead time, and payment terms are not publicly confirmed and should be verified during inquiry.
- Publicly confirmed strengths are woven shirt sewing; T-shirts, sweatshirts, hoodies, bags, and hats are excluded because public evidence for those categories is weak.
Lot guidance
Public reporting from 2014 indicates the Okinawa factory produced roughly 3,000 kariyushi shirts per month, including 1,000 to 1,500 OEM pieces. MOQ, small-lot conditions, and current monthly capacity are not publicly confirmed and should be checked per project.
Sample terms
There is confirmed experience studying a sample shirt by deconstructing it and adapting detailed specifications. Sample pricing, lead time, and revision terms require confirmation.
Service scope
See which stages are available from planning through delivery.
Planning and design proposal
Needs confirmation
Sample development and testing
Supported
Material and packaging sourcing
Needs confirmation
Mass production and processing
Supported
Quality, certification, and labeling
Needs confirmation
Packing, kitting, and logistics
Needs confirmation
Quality and certifications
Public information confirms in-factory inspection, finishing, folding, and bagging processes. Third-party certifications such as ISO, BSCI, SEDEX, or OEKO-TEX and inspection methods such as full or sampling inspection are not publicly confirmed.
Certifications
Not confirmed in public information
Sustainability
Not confirmed in public information
Published information may include supplier-provided or operator-verified details. Confirm specifics during your inquiry.
Track record
Past clients
UNITED ARROWS, Maker's Shirt Kamakura, Ralph Lauren
Production countries
Japan
Equipment and materials
Manufacturing equipment and resources
Supported materials
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