Under-Brim Sublimation Printing — Process, Specs, and File Requirements
Full-color digital print on the under-brim fabric lining, dye-sublimated onto polyester twill, then cut and sewn into the brim during hat construction. The under-brim is the most visible brand surface when the hat is worn — the wearer sees it every time they put the hat on or tilt the brim. This page covers the process, substrate options, artwork requirements, and what to send.
Coming from the Customization Options hub? This is the full technical detail for under-brim printing.
Coming from the Customization Options hub? This is the full technical detail for under-brim printing.
Why Choose Our Factory?
Superior Quality: Using top materials and strict QC, our USAPA-compliant products are market-tested to ensure excellence in every unit.
Expert R&D: Our R&D team tracks trends to optimize performance and turn your vision into products with a sharp competitive edge.
Advanced Production: Our automated digital factory ensures high capacity and timely delivery for both rush and large-scale bulk orders.
One-Stop OEM/ODM: From mold to packaging, our full-service solutions simplify and optimize your supply chain management efficiently.
Why Customers Choose Under-Brim Sublimation
Sublimation is the only method that handles photographs, gradients, maps, illustrated scenes, and unlimited color on a hat surface. It turns the hat interior into a full brand surface. Common programs: resort and hotel collections, beach clubs, surf brands, festival merchandise, and destination retail where the under-brim carries a location map, brand scene, or seasonal graphic. A solid-color under-brim requires only a Pantone reference — no artwork file, no per-unit print cost.
Print Area & Dimensions
Typical adult hat under-brim print panel: ~280×80mm (arc-shaped; exact dimensions vary by brim width and style). Kids’ hat: ~220×60mm.
Artwork must be submitted in flat dieline format — not curved or photographed on a worn hat. Brim shape (flat vs. downturned) affects how artwork visually distorts when worn; a flat dieline submitted correctly will read as intended once the brim is shaped. We provide a dieline/template on request — specify your brim width and style when you ask.
Artwork File Specifications
[table id=37 /]
CMYK vs. Pantone note: Pantone references are used as calibration targets. Not all Pantone colors fall within the CMYK gamut. Neon and fluorescent colors (e.g., Pantone 802 C, 811 C) cannot be reproduced accurately via sublimation — flag these in advance so we can advise on the closest achievable match before artwork approval.
Color Matching & Tolerances
- Standard color tolerance: ΔE ≤3 (CIE76) on calibrated sublimation printers.
- Pantone matching: Coated library only (PMS C). Uncoated references not used for sublimation.
- Neon/fluorescent colors: outside CMYK gamut — flag before artwork approval. We provide a printed color chip for confirmation before bulk production.
- Batch-to-batch consistency: ΔE ≤2 within a single run; ΔE ≤3 across reorder batches.
Design Dos and Don’ts
Do:
- Keep critical text and logos inside the safe zone — 10mm from all edges minimum.
- Submit artwork as a flat dieline, not a photo of a worn hat.
- Include Pantone references for any brand-critical color.
- Use high-resolution source images (300 dpi or higher at print size).
Don’t:
- Use hairline strokes below 0.25pt — they will not reproduce cleanly.
- Submit artwork in RGB mode — CMYK conversion at our end will shift colors unpredictably.
- Expect neon or fluorescent colors to match exactly — they are outside the sublimation gamut.
- Assume a 5% trim variation won’t affect your layout — plan for it in the safe zone.
- Submit skin tones expecting photographic subtlety — CMYK compresses tonal range; skin tones lose nuance. Confirm with a PP sample before bulk approval.
Durability
Sublimation dyes the polyester fiber — color is not a coating on the surface. The print will not crack, peel, or wash off. Expected performance:
- Colorfastness: Rated for the full lifecycle of the polyester substrate.
- UV exposure: Minor fade after ~18 months of heavy outdoor use under direct sun.
- Saltwater and sweat: No effect — the dye is chemically bonded to the fiber.
- Wash: Colorfast through standard machine wash cycles (cold, gentle).
What Our Clients Say
Ready to experience our award-winning service?
Elena R.
Sourcing Manager, Madrid Fashion Group
★
★
★
★
★
“
Finding a factory that offers multiple natural straw options with flexible MOQs was a challenge until we found this team. Their MOQ 50 policy allowed us to test three different designs for our summer collection without heavy inventory risk. The 3-day sample turnaround was incredibly impressive.
Classic Panama Hats
Quantity: 1,200 pcs
Hans
Lead Distributor, Berlin Lifestyle Brand
★
★
★
★
★
“
The biggest headache in overseas sourcing is usually customs. This team handled everything via DDP (Delivered Duty Paid). No hidden fees, no paperwork, and no delays at the border. The pallets of lifeguard hats arrived directly at our warehouse in Berlin in perfect condition—not a single brim was crushed during transit.
Straw Lifeguard Hats
Quantity: 4,500 pcs
Jennifer Chen
Product Developer, Sydney Outdoor Gear
★
★
★
★
★
“
Consistency is the hardest part of large-scale straw hat production, especially with hand-woven items. We provided a complex Tech Pack, and their engineering team executed the weave patterns and branding density perfectly. Out of 22,500 units, the quality of the first hat matched the last. Their QC process is truly world-class.
Custom Straw Cowboy Hats
Quantity: 2,500 pcs
We are Proud to Partner with These Brands
We have worked with
FAQ: Solving the Race Organizer’s Logistics & Quality Risks
Q1: What is the Minimum Order Quantity (MOQ) for custom race apparel?
A: Our standard MOQ is 100 pieces per style. For specialized gear like elite pacer singlets or staff jackets, we can accommodate runs as low as 100 pieces to ensure your entire team is unified.
Q2: How do you ensure my sponsors’ brand colors are accurate?
A: We use Pantone Solid Coated (C) color matching. We provide digital strike-offs and physical fabric chips for approval before mass production, ensuring your sponsor’s brand integrity is maintained across all garments.
Q3: What are your standard lead times for bulk orders?
A: Typically, production takes 2-3 weeks after sample approval. We recommend starting the process 45-60 days before your event to allow for sea or air freight buffer.
Q4: Do you offer “Rush Orders” for late-signing sponsors?
A: We maintain “Greige Fabric” (undyed) stock in our factory. This allows us to pivot and produce emergency batches of 500+ units in as little as 7-10 days when a sponsor joins at the last minute.
Q5: How do you handle international shipping and customs?
A: We primarily ship DDP (Delivered Duty Paid). This means the price we quote includes all freight, customs duties, and taxes. You simply receive the pallets at your warehouse or event hotel.
Q6: How do you ship the finished product?
A: By sea, By plane, By DHL, FEDEX, UPS, TNT
Q7: Can I get a physical sample before committing to a 5,000-unit order?
A: Absolutely. We provide a pre-production sample in 3-7 days for your team to test for fit, fabric hand-feel, and print durability.
Q8: What is the 30/70 payment model?
A: You pay a 30% deposit to initiate production. The remaining 70% balance is only due after the bulk order passes inspection (by your team or a 3rd party like SGS) and before it leaves our factory.
Q9: Do you provide size charts for different regions (US vs. EU)?
A: Yes. We offer standardized US, European, and Asian size charts. We can also create custom size runs based on your specific participant demographics.
Q10: Is children size having the same price as the adult?
A: Yes, when sewing an adult’s or a child order it takes the same amount of time.
Q11: Is your apparel eco-friendly?
A: We offer GRS-certified RPET (Recycled Polyester) made from post-consumer plastic bottles. We can provide the Transaction Certificate (TC) to help you meet your event’s sustainability goals.
Q12: Can you replicate my order if I provide you a sample?
A: Yes, if you give us fabric details, PMS and vector file design.
Q13: What if we do a reorder and we cannot get a full order of 10 pieces or more?
A: Price is the same if you reorder less than 10 pieces to replace lost or worn-out jersey with same design.
Get Started Today
We specialize in custom running apparel for race organizers. Send your logo file and target placement, and we’ll produce a free PP sample in 3 days.
· MOQ 50
· Free PP sample
· 3-day sample turnaround
· NDA on request
Running Industry Insights & Case Studies
We share our manufacturing expertise to help you optimize your race budget and participant experience.