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Product Image GG-SIG-01 (CLEARED)


Price: $0

In light of the worsening COVID-19 pandemic, GG team will be issuing hand-made highly breathable DWR-fabric face-masks in limited quantities. The face-masks will consist of a breathable DWR nylon outer, with a mesh inner that allows easy insertion of surgical masks for added protection if necessary.

These masks are NOT-FOR-SALE, but will be shipped with every order on our website, no minimum spend required. This is our team’s way of being of service to the global community and that we can at least make a difference, no matter how big or small. We seek your understanding that there are limited quantities due to the hand-made nature of these masks.

Lastly, please stay safe, and we hope that the worst of the COVID-19 situation will be behind us very soon.



UPDATE : GMT+8 13:00


This is an announcement to notify you that WE GIVEN OUT ALL FACE-MASKS (SIG Mask). We sincerely seek your understanding on the limited quantities due to production restrictions. The response to the demand for masks during this difficult time far exceeded what we had initially planned for, and is what we see as an alarming reflection of the escalating situation in reality.

In order to expand our efforts, we are currently in talks with multiple external vendors on the possibilities of an expedited production run for similar masks. Due to supply chain restrictions, much uncertainties lie in both sourcing suitable fabrics and available ad-hoc production channels.

In the event that we are able to secure a large (hopefully) batch, we will stand by our initial decision not to sell the masks. We are currently considering various distribution options, to extend the reach of these masks to as many people in our community as possible.

Thank you all for your understanding, and please stay safe. 










  • Water Repellent / Breathable
  • Adjustable elastic strings
  • Inner Compartment for Surgical Mask



Free / Limited QTY with Order



Adjustable with Elastic Strings





  • Textile : WR Cotton Textured Nylon
  • Composition : 100% Nylon
  • Origin : Taiwan
  • Performance : C6 Water Repellent / Light-Weight / High Breathability
  • Information:
    Breathable water-resistant outer fabric, effective against air-borne particles while retaining breathability.



  • Textile : Light-weight Mesh Fabric
  • Composition : 100% Polyester
  • Information:
    Mesh compartment adds comfort, breathability, and allows insertion of surgical masks.




  • Please adjust fit accordingly using nose-bridge metal strip in surgical mask.
  • Elastic string cords on both sides allow adjustment for optimal seal and fit on different face shapes/sizes.



  1. Service
    We offer worldwide shipping to all the countries. We are using DHL as default shipping service, but due to the policies and customs conditions from different countries, the shipping service will be changed on several countries to minimize the process time of the package.

    Once the package is dispatched, you will be able to receive a tracking number for your reference by E-mail or SMS.

    Please check the following list for the delivery days of the international shipping service.

    FedEX International Priority
    Delivery Days : 2-4 days

    DHL Express
    Delivery Days : 2-4 days

    SF Express
    Delivery Days : 2-4 days

    EMS Postal System
    Delivery Days : 5-7 days

  2. Shipping Days
    Please be noted that the usual shipping days of Guerrilla-Group are Monday / Wednesday / Friday with the exception of holidays (GMT+8).

    To ensure the product condition of your order, we will examine the products again before we send out the package. Therefore the package will be only processed on days we listed above. Please contact us if you need assist due to any urgent situation.

  3. Import Duties
    Customs and import duties and fees may be applied to international orders when the shipment reaches its destination country, such extra fees will be charged to the recipient by DHL / Fedex / EMS / SF-Express or your local customs office directly. Guerrilla-Group (GFIRMG Co., Ltd) has no control over such extra charges. Please note that such fees and charges are the responsibility of the recipient and vary from country to country.


  1. Return & Exchanges
    Please be noted that before you want to send back the package, a return application must be processed with us by E-mail. Please follow the return / exchange process below carefully, otherwise your application will be cancelled automatically and we will not able to process refund on your order.

    1. We accept return and exchanges within 5 days of delivery.
    2. The package must be sent out in 5 days once your return request is approved.
    3. Product should be unworn, new condition, tag attached.
    4. Customer will be responsible for the return shipping costs.
    5. Original shipping costs will be deducted once we proceed the refund.
    6. Customized items are not eligible for return or refund.

  2. Refund
    After we receive the return package, you will be refunded the full amount of the product returned. It would take 5-10 business day to have the refund posted to your account. For any returned or exchanged items, we do not refund the cost of shipping of your original order.

  3. Sale Item
    Products purchased during sale periods are eligible for store credit only. Store credit will be issued through Guerrilla-Group Gift Card.

  4. Repair
    We do offer repair service, please contact us for further information.

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