For more than 30 years, Flexboy® bags (5mL to 50L) have provided robust solutions for the storage, sampling, and transfer of all biopharmaceutical fluids in all process steps. Flexboy® bags promise quality supply, robustness, closure integrity, biocompatibility, and cell growth performance.

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*Custom/bulk order quotes are provided within 72 hours of request.

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When you select Flexboy® Pre-Designed Solutions (PDS), you benefit from an assurance of quality supply, robustness, ease of use, closure integrity, and biocompatibility for every media, buffer, harvest & downstream intermediates, drug substance, and drug product process step.

You can use our intuitive digital brochure to help you select your Flexboy® PDS quickly and efficiently. PDS help speed up process design, reduce the number of stock keeping units (SKU’s), and hence reduce inventory management complexity and costs.

Assurance of Quality Supply

Our assurance of quality supply and performance is based on the fact that we retain complete control over our manufacturing process, from the resins to the film, the bags, the filters, and the assembly.


The strength and flexibility of Flexboy® bags make them robust and suitable for all small-scale process steps.

Closure Integrity

The closure integrity of Flexboy® 2D bags has been ensured for the last two decades using multiple qualification tests, process controls, and a 100% in-process leak test resulting in 25 million 2D bags used worldwide. Integrity assurance is a result of our control of the manufacturing process along the entire product lifecycle. Our Supplier Integrity Test (SIT) and FlexAct® BT point-of-use leak test will continue to improve the process, product, operator, and patient conditions when using Flexboy® bags in critical process steps.

Cell growth

An excellent and reproducible cell growth has been proven by both internal and external lab data.


  • Application Area
    Liquid storage & shipping  

Materials of Construction

  • Film Material
    Film S71: Ethylene-vinyl acetate (EVA)  

Product Information

  • Bag Type
    2D storage & shipping bag  
  • Brand


  • Delivery Condition
  • 2D Bags Tray and Rack System
    Item no.

    Tray and Rack Systems are designed to facilitate handling of one or more Flexsafe®, Flexboy® and Flexel® 2D Bags, available in sizes ranging from 5L to 50L, within biopharmaceutical manufacturing processes.