We manufacture our flags from high-quality technical polyester, which is the ideal substrate for sublimation printing. This material is characterized by high mechanical strength and lightness, allowing the flag to flap freely. Polyester does not absorb moisture (moisture absorption below 0.5%), so the flag does not become heavy even in the rain.

Yes, our flags are fully suitable for year-round outdoor display. The sublimation dye used is chemically stable across a wide range of temperatures—from extreme cold to intense heat. Although any fabric may lose a small amount of color saturation over time when exposed to very intense sunlight, the polyester in our flags retains its properties.

We use a lightweight fabric weighing approximately 115 g, which ensures excellent flag movement even with minimal air circulation. This is crucial for indoor tracks, where airflow is limited. The lightweight weave ensures the flag “works” with every gesture of the referee, ensuring clear signals for the drivers.

The sublimation print on Humboo flags is virtually indestructible because the dye penetrates the fabric’s fibers at the molecular level. It’s not a surface print, so it won’t crack or peel. You can wash the flags according to the care label instructions (usually 30°C), and the colors will remain vibrant throughout the fabric’s lifespan.

Sublimation is a 360° printing process that does not alter the fabric's structure (the fabric "breathes"), whereas DTF is a technique for applying logos "to the surface."

• Sublimation: Ideal for full-print flags, completely imperceptible to the touch, permanently bonded to the fabric.

   

• DTF: Used primarily for smaller logos on finished products, it offers excellent detail precision but creates a noticeable layer.

We offer a full range of standard sizes, from 75×60 cm to large flags measuring 120×180 cm. This wide range allows you to choose a flag suitable for both dynamic signaling at turns and for the ceremonial setting of the finish line or podium. Visit our B2B platform to explore our full range of flags

As a comprehensive manufacturer balaclavas and cotton balaclavas , we select the marking technique to fully utilize the properties of the fabric used. The choice of method depends on the product model you select:

• Sublimation printing (360° full-print) – designed for moisture-wicking products: We use this technology to produce balaclavas with custom prints. Sublimation allows us to print the entire surface of the polyester fabric before it is sewn together. The dye permanently bonds with the fibers, making the print completely imperceptible, crack-free, and—most importantly in sports—it does not restrict the fabric’s breathability. This is a "premium design" solution that we supply to karting tracks and ski slopes throughout the European Union (including Poland, Germany, France, Italy, the Czech Republic, and Slovakia).
• Screen printing – ideal for balaclavas : We use this proven method for cotton balaclavas featuring a logo. Screen printing allows for precise, “dot-by-dot” application of the logo onto the finished balaclava. It is an extremely efficient and cost-effective method for larger runs, ensuring high color intensity and excellent coverage. It is ideal for corporate branding, company events, or as a mass promotional item for customers throughout the EU.

Summary: We always tailor our technology to your business needs. If you need balaclavas custom balaclavas with all-over graphics (e.g., racing patterns, camo), we recommend sublimation printing. If you’re looking for a classic, cost-effective solution made from natural fibers, our screen-printed balaclavas logos are the perfect choice. We carry out both processes at our Polish printing facility using skin-safe inks ( REACH compliant).

For track turns (referee signage), the 75×60 cm size works best, while for the finish line, we recommend sizes of 100×70 cm or larger.

Expert tip: Keep visibility in mind—the faster the section of the track, the larger the flag should be so that the driver can see it well in advance.

Our regular product lineup includes a full set of track flags: the classic checkered flag, as well as yellow, red, blue, and green flags. All designs comply with motorsport standards, which facilitates professional race management.

We prefer vector formats—AI, EPS, PDF, or SVG—which ensure perfectly sharp edges regardless of the flag’s size. We can work with raster files (PNG, JPG) if they have a high enough resolution, but vectors are the standard for professional printing.

Yes, we offer full graphic design support—from free basic revisions to advanced design from scratch. Custom projects may require a quote for our graphic designers’ work, but we always ensure that the final result is consistent with your brand.

We always send a free visual mockup for your approval before starting production, usually within 24 hours of receiving your files. Production begins only after your payment has been processed and you’ve given the project the "green light".

We offer standard print areas of 15×15 cm or 25×25 cm, as well as a full-print option covering the entire surface of the flag. The choice depends on your branding strategy—from a subtle logo in the corner to a flag that serves as one big advertisement.

Yes, sublimation technology allows the entire fabric to be printed before it is hemmed, with no limits on colors or gradients. This means the flag can feature any background, such as a carbon fiber texture or dynamic racing graphics.

At Humboo, we don’t impose strict limits—you can order custom flags starting from just one piece. This allows you to flexibly add to your track equipment without having to stockpile large quantities.

The standard delivery time is 5–7 business days, but for larger orders (over 50 items), this may take 7–10 days. You can always view the final deadline in your shopping cart after logging into the B2B portal.

To order custom-printed karting flags from Humboo, choose one of the following options:

• Log in to our B2B platform(requires business customer verification by our staff), send us your,
  
  
• use our contact form
  
  
• Contact us by email or phone

Yes, we serve karting tracks and companies around the world, regularly shipping packages to countries such as Germany, France, Italy, and the Czech Republic. For orders within the EU with a valid EU VAT number, we apply a 0% rate (Intra-Community Supply of Goods).