Merino wool Lenzing FR modal(viscose) flame resistant underwear

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The flame retardant underwear of Royal made of a blend of 50% Merino wool and 50% Lenzing FR Modal 230gsm interlock fabric has the following characteristics:

  1. Flame retardant properties: This blend combines the flame retardant characteristics of Merino wool and Lenzing FR Modal, providing enhanced flame resistance and reducing the risk of fire spread.
  2. Comfort: The combination of the warmth provided by Merino wool and the softness of Lenzing FR Modal creates a comfortable wearing experience, with good breathability and moisture-wicking properties.
  3. Antimicrobial: Both Merino wool and Lenzing FR Modal have natural antimicrobial properties, helping to reduce odor and bacteria growth, keeping the underwear clean and hygienic.

Merino wool Lenzing FR base layer

Compared to other flame retardant underwear, the blend of 50% Merino wool and 50% Lenzing FR Modal has the following advantages and disadvantages:


  • Higher flame retardant performance for better protection.
  • Comfortable and soft with good temperature regulation.
  • Antimicrobial properties to reduce odors and bacterial growth.


  • Higher cost compared to regular underwear due to the specialized blend.
  • Variation in blend ratio and quality across different brands.

This blend of flame retardant underwear is primarily used in the following areas and industries:

  • High-temperature work environments such as welding and metallurgy.
  • Workplaces with potential fire hazards, such as the oil and gas industry.
  • for firefighters, military personnel, and others requiring flame retardant protection.

The standard of the royal‘s  50% Merino wool and 50% Lenzing FR Modal blended 230gsm interlock underwear could pass En11612, EN1149, EN61482, NFPA70E  and so on. You can send e-mail to for more info about this item.

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