SUSTAINABLE COLD CHAIN INSULATION

EcoWool
Thermal Box wool Liners

100% biodegradable wool felt insulation for temperature-sensitive shipments. Fully customizable in size, thickness, and weight — engineered for food, pharma, and life science logistics.

100% BiodegradablePlastic-FreeCustom Sizes Available Carbon-Neutral Sourcing

PERFORMANCE AT A GLANCE

24–72

hours temp maintained
(2°C–8°C or frozen)

80%

less warehouse storage vs. EPS foam

6–12

months to fully compost in soil

KEY ADVANTAGES

Superior thermal performance

Natural wool fibers create millions of microscopic air pockets that trap heat or cold. Maintains target temperatures far longer than EPS foam — ideal for 2°C–8°C pharma and frozen food shipments across provincial routes.

Flat-pack design, extreme space savings

Unlike rigid foam, our liners ship and store flat. Reduces warehouse footprint by up to 80% compared to EPS — dramatically cutting inbound freight and storage costs.

Moisture management is built in

Wool is naturally hygroscopic and breathable. It absorbs condensation from the inside out, keeping primary packaging dry and intact throughout transit.

Fully circular & renewable

Sourced from annually sheared sheep, compostable in 6–12 months. Future-proofs your supply chain against 2026+ global plastic packaging regulations.

PRODUCT SPECIFICATIONS

FEATURE	DETAILS
Material	100% Natural Wool (Felted)
Available thickness	5 mm 10 mm 15 mm Custom
GSM / Weight	Custom gram weights available on request — light, mid, and heavy-duty options
Sizes	Custom-cut to your exact box dimensions; standard and non-standard formats accepted
Format	Two-piece gusseted liners or flat custom-cut sheets
Certifications	Compostable Plastic-Free Carbon-Neutral Sourcing
Target industries	Gourmet food · Biopharma · Meal kits · Cosmetics · Life science

All liners are made-to-order. We cut to your box size and can produce any gram weight (GSM) — from lightweight 400 gsm liners for ambient-cool shipments to heavy-duty 1200 gsm configurations for extended frozen transit. Request a sample or quote with your dimensions.

ECOWOOL VS. EPS FOAM

FEATURE	ECOWOOL WOOL LINER RECOMMENDED	EPS / STYROFOAM
Thermal hold	24–72 hrs	12–24 hrs
Biodegradable	Yes	No
Flat-pack storage	Yes	No
Custom size / GSM	Yes	No
Moisture control	Yes	No
Regulatory compliant (2026+)	Yes	No

 

FAQ

Q: How long does wool insulation keep products cold?

A: EcoWool liners maintain internal temperatures between 2°C and 8°C for 24 to 72 hours, depending on liner thickness, ambient temperature, and the number of ice packs used. For frozen shipments, performance is comparable with appropriate GSM selection. We recommend requesting a sample test with your specific box dimensions for accurate data.

Q: Is wool insulation better than EPS (Styrofoam) for the cold chain?

A: In most real-world conditions, yes. Wool outperforms EPS on thermal hold duration (up to 72 hrs vs. 12–24 hrs), moisture absorption, and flat-pack storage efficiency. EPS can crack and off-gas during transit; wool remains intact and breathable. For long-distance or cross-province shipping in high-temperature conditions, wool provides a more stable and reliable temperature environment.

Q: What temperature ranges can EcoWool liners handle?

A: EcoWool liners are suitable for chilled (2°C–8°C), ambient cool (8°C–15°C), and frozen (-18°C and below) applications. The right thickness and GSM will vary by target range — our team can advise based on your route and season.

Custom orders

Q: Can I order liners cut to my exact box size?

A: Yes. All EcoWool liners are made-to-order and cut to your specified dimensions. Simply provide your inner box length, width, and depth, and we will produce liners that fit precisely — no trimming or adjustments needed on your end.

Q: What GSM (gram weight) options are available?

A: We produce liners across a wide GSM range: light (~400 gsm) for ambient-cool shipments, mid (600–800 gsm) for standard chilled transit, and heavy-duty (1000–1200 gsm) for pharmaceutical or extended frozen routes. Custom weights outside this range are also available on request.

Q: What is the minimum order quantity (MOQ)?

A: MOQ varies depending on size and GSM specification. Please contact us directly with your requirements for a quote. Sample orders for testing and validation are available before bulk commitment.

Q: What formats are available — sheets or gusseted liners?

A: Both formats are available. Two-piece gusseted liners are the most popular for standard shipping boxes — they line all four sides and the base cleanly. Flat custom-cut sheets are available for brands that prefer their own assembly process or have non-standard packaging formats.

Sustainability & compliance

Q: Is wool packaging actually biodegradable?

A: Yes. EcoWool liners are made from 100% natural felted sheep’s wool with no synthetic binders or plastic coatings. When composted in soil, they fully break down within 6 to 12 months — compared to EPS foam, which takes hundreds of years to degrade and is classified as a microplastic pollutant.

Q: Will wool packaging comply with 2026 plastic packaging regulations?

A: Yes. EcoWool liners are plastic-free and certified compostable, positioning them as fully compliant with current and anticipated plastic packaging restrictions across the EU, UK, and major Asian markets. Switching now avoids supply chain disruption as regulations tighten.

Q: Where does the wool come from?

A: Our wool is sourced from annually sheared sheep — a renewable process that does not harm the animal.

Practical use

Q: Does wool absorb moisture and damage products?

A: Wool is hygroscopic — it absorbs moisture vapor from the air and releases it slowly, acting as a buffer against condensation. This protects primary packaging from becoming wet. Unlike foam, which traps water and can cause mold, wool manages humidity actively while keeping contents dry.

Q: How does flat-pack storage work, and how much space does it save?

A: EcoWool liners are shipped and stored flat, then folded into shape at packing time. This reduces warehouse storage requirements by up to 80% compared to pre-formed EPS boxes, which cannot be compressed. For high-volume operations, this translates directly into lower storage costs and simpler inventory management.

Q: Can end customers recycle or compost the liner at home?

A: Yes. EcoWool liners can be added directly to home compost or garden beds and will break down naturally. This creates a positive unboxing experience — customers do not need to find a foam recycling point or discard plastic. Brands can include a simple composting instruction card to reinforce the sustainability message.

Ready to upgrade your cold chain packaging?

DM for more details and samples.