Natural fibre-based temperature-controlled packaging
Our FIBA range pairs the natural thermal performance of wool with validated, compliant design—protecting sensitive goods in transit while lowering environmental impact.
The FIBA range
Natural performance. Sustainable innovation.
Wool’s crimped fibres and microscopic air pockets create a powerful thermal barrier—regulating temperature and humidity more efficiently than many synthetics. By harnessing that advantage, FIBA delivers reliable control for pharmaceuticals, healthcare products, and perishable goods from origin to destination
Why it works
- Micro‑air pockets: Wool’s crimped fibres trap air, forming a stable thermal barrier that slows heat gain and loss.
- Humidity buffering: Fibres absorb and release moisture, reducing internal condensation and keeping cartons, labels, and secondary packaging dry.
- Breathable insulation: Promotes even temperature distribution and helps prevent cold spots and “sweating.”
- Optimised with coolants: Pairs efficiently with gel PCM packs to maintain 2–8 °C or CRT on typical routes with less coolant mass.
Outcome: fewer excursions, drier payloads, and more consistent performance across courier hand‑offs.
Our FIBA solutions
Choose the format that fits your payload, route, and validation needs.
Thermopac FIBA bags
For smaller payloads and last-mile distribution, the FIBA Bag offers reliable thermal protection in a lightweight, flexible format. Whether delivering medicines direct to patients, supporting homecare programmes, or protecting samples in transit, FIBA Bags combine portability with robust performance.
- Compact, lightweight design
- Perfect for medication that requires refrigeration
- Optional integrated gel or PCM cooling elements
- Reusable & recyclable material options
- Available in multiple sizes
Thermopac FIBA liners
FIBA Liners transform standard cartons and rigid boxes into validated cold chain shippers. Designed for high-performance insulation, they are tested to meet the rigorous requirements of pharmaceutical, healthcare and food distribution.
- Temperature Range: Maintains 2–8°C or 15–25°C (CRT) for 48+ hours when used with pre-conditioned coolants.
- Compliance Tested: Validated under GDP-aligned thermal profiles.
- Payload Flexibility: Suitable for clinical trial kits, biologics, and high-value healthcare products.
Tailored formats & validations
Need a specific payload size, profile, or reuse model? We engineer custom configurations and support your validation process to ensure it aligns with your specific route profile, use case and regulatory needs.
From one-off prototypes to fully scaled solutions, we design systems that keep your products protected and compliant from door to door.
Gel packs
Coolant packs are perfect for all the systems we supply & you can be assured when using them with our insulated products that, your product is being sent in a fully validated temperature controlled system.
- 100% recyclable
- Pre-filled (no need to soak in water)
- Food safe & non-toxic
- High quality seal
- Do not stick together once frozen
Where it fits
Versatile solutions for multiple industries
Pharma & healthcare
- Biologics, medications, clinical trial kits
- Direct-to-patient & homecare deliveries
- Diagnostic samples and controlled CRT
- GDP-aligned designs for compliant routes
Food & Ecommerce
- Chilled food & meal kits (0–5 °C)
- Meat, poultry, seafood—EPS alternative
- Artisan & premium goods (e.g., chocolates)
- Lightweight, recyclable for home delivery
Wool regulates humidity to reduce condensation and spoilage while aligning with consumer sustainability expectations.
We love wool. Take a look at this handy FAQ showing all its benefits.
Why is wool an effective insulator in cold chain packaging?
heat
Wool fibres have a natural crimped structure that forms countless micro air pockets. These pockets reduce heat transfer by conduction and convection, providing stable thermal performance critical to GDP-compliant pharmaceutical and biotech logistics.
How does wool perform in variable transport conditions?
dry
Wool can absorb up to 30% of its weight in moisture without feeling damp, maintaining thermal efficiency even in humid or fluctuating environments. This makes it more reliable than many synthetic insulators, especially in long-haul or last-mile delivery chains.
How does wool align with sustainability and compliance frameworks?
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Wool is renewable, compostable, and biodegradable, supporting corporate ESG targets and UK sustainability frameworks. By replacing non-recyclable foams with natural fibres, companies can reduce their environmental impact while meeting customer and regulatory expectations.
Does wool protect beyond thermal performance?
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As well as helping maintain stable temperatures, wool naturally manages moisture by absorbing and releasing humidity, which helps reduce condensation inside the pack. This can help keep cartons, labels, and secondary packaging drier during transit.
Wool also provides a more sustainable protection layer. It is renewable & biodegradable, helping businesses reduce reliance on synthetic foams while supporting lower-impact cold chain packaging.
Why wool. Why FIBA
heat
A natural thermal buffer
Wool fibres trap air and regulate humidity for stable performance across profiles.
compost
Biodegradable & renewable
Insulation that breaks down at end-of-life—grown annually without petrochemicals.
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Proven in regulated chains
Trusted in pharma and food logistics globally with aligned validations.
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High performance, lower impact
Reliable control with a smaller footprint—ideal for circular models.
FIBA product comparison
| Feature / Spec | FIBA liners | FIBA bags |
|---|---|---|
| Format | Insulated panels forming a rigid box insert | Flexible insulated pouch system |
| Best for | Pharma shipments, biologics, clinical trial kits, food cartons | Direct-to-patient deliveries, samples, small-volume goods, home delivery |
| Payload size | Suited for cartons/totes ~5–30 L | Small payloads typically ~1–10 L |
| Temperature control | 2–8 °C or 15–25 °C (CRT) for 48+ hours with conditioned coolants | 2–8 °C or CRT for 24–48 hours |
| Validation | GDP-aligned | Tested under courier & last-mile stress profiles |
| Storage & handling | Delivered flat-packed for efficient storage | Compact, lightweight, easy to handle |
| Durability | Single-use or reuse in circular models | Reusable within return logistics schemes |
| Applications (Pharma) | Bulk medicines, biologics, diagnostic kits | Homecare deliveries, clinical samples, trial packs |
| Applications (Food) | Chilled groceries, seafood, meal kits, premium foods | Fresh produce, artisan goods, e-commerce deliveries |
| Sustainability notes | Wool insulation is 100% biodegradable | |
Specifications can be tailored through custom validation and reuse programmes.
Sustainable performance. Proven compliance.
Every liner and bag is engineered with product safety and regulatory alignment at its core—pairing natural wool insulation with validated data for dependable cold chain integrity across pharma and food.
GDP-aligned
Profiles and reports for audit-ready confidence.
Circular options
Reuse models to reduce waste and cost.
Lower footprint
Renewable fibres, recyclable outers.
Custom Solutions
Route-specific guidance and tailored builds.
Ready to specify a solution?
Tell us your payload, route profile, and constraints—we’ll recommend the optimal FIBA configuration and validation path.