Robust and Flexible Structure for Enhanced User Experiences

Circus DURA

Smartrac CIRCUS™ FLEX tags have been specifically designed with an enhanced environmental resistance for demanding brand and retail applications. The innovative CIRCUS FLEX product paves the way to whole new customer experience solutions featuring higher customer engagement and loyalty opportunities for brands and retailers. CIRCUS FLEX adds digital value to products, and bridge offline products to the digital world based on Smartrac’s Smart Cosmos solutions.

CIRCUS FLEX is a small, robust and cost-effective tag. Its flexible structure allows it to be directly embedded into difficult to tag items, like playing balls, jerseys, jackets or footwear. A specialized glob top protects the IC and antenna connection area that makes CIRCUS FLEX a highly protected flexible tag. It withstands home washing and drying cycles as well as mechanical stress, temperature cycles and impact stress.

The tag comes with the NXP NTAG 213 IC on board, provides superior performance and offering (UID) mirror functionality. CIRCUS FLEX tag is ideal wherever small size, robustness as well as flexibility with top performance is essential. Item-level product authentication, brand protection and many other application areas benefit from CIRCUS FLEX. It turns products into digital content hubs at the tap of a smartphone.

Smartrac’s inlays and tags are compliant with ISO 9001:2015 Quality Management and ISO 14001:2015 Environmental Management. This ensures a reliable and state-of-the-art product that meets a variety of application needs, where high performance is a critical parameter.


Operating Frequency

13.56 MHz

Integrated Circuit (IC)


Antenna Size

Ø 20 mm (0.79 in)


Die-cut Size

Ø 22 mm (0.87 in)

Quality Assurance

100% performance tested

Fields of Applications

  • Retail
  • Brand Protection
  • Customer Experiences
  • Product Authentication

International Standards

  • ISO 14443 A
  • NFC Forum


  • Flexible structure
  • Enhanced environmental resistance
  • Good for wash & wear applications