Replace Styrofoam.
Keep the cold.

ColdShip manufactures recyclable and compostable cold-chain packaging for last-mile delivery. Box liners, insulated mailers, and gel ice packs, all ISTA or ASTM-tested to perform. Built for pharmacies, meal kit shippers, and anyone moving temperature-sensitive product to the end customer.

Lifecycle, now full circle.
Sustainability and savings.

ColdShip liners and mailers are built to take cost out of the whole chain: lower dim weight on every parcel, more units per pallet, less warehouse cube, and lighter inbound freight. Recyclable and compostable, with no tradeoff on temperature control. 
  • 5
    Liner materials

    Hemp, denim, cotton blend, PET, paper
  • 0
    Styrofoam

    Every product is recyclable or compostable
  • ~3.7
    R-Value / inch

    ASTM C518 tested (hemp)
  • −1.21
    kg CO₂e / unit

    Carbon negative (hemp)
The problem

Polyurethane works.
Styrofoam works.
Then it sits in a landfill for 500 years.

Expanded polystyrene is the default for cold-chain shipping. It insulates well. It also can't be recycled curbside, breaks into microplastics, and creates a disposal headache for every recipient.

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The pressure

ESG scorecards, EPR laws, and customer expectations are all moving.

PBMs are scoring pharmacy vendors on sustainability. Meal kit customers are canceling over packaging waste. State EPR regulations are expanding. The pressure to switch is operational, not just ethical.
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The answer

Sustainable packaging that ships cold. No performance tradeoff.

ColdShip builds recyclable and compostable alternatives that match or exceed Styrofoam thermal performance. Five liner materials, pre-assembled mailers, and gel ice packs, all tested to ASTM or ISTA standards. 
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Built for the verticals where cold chain compliance is non-negotiable.

If it has to arrive cold and your packaging has to be sustainable, we built a product for your use case.
Mail-Order Pharmacy
Rx and specialty biologics

USP <1079> compliant transit packaging. Tamper-evident mailers for chain-of-custody. VOC-free for pharmaceutical handling environments. Sustainability scoring for PBM vendor audits.

Meal Kit & DTC Food
Perishable food to the doorstep

Recyclable liners that end customers can put in the curbside bin. Natural-look unboxing experience. Flat-ship format for warehouse efficiency. Cost-competitive with EPS at volume.

Life Science & Biopharma
2 to 8°C controlled shipments

Temperature-controlled packaging validated against USP <1079> and <1178> transit requirements. Clean-room safe materials. Documentation support for regulated shipments.

 

denim chat

ColdShip packaging is tested to ISTA 7E protocol

ColdShip customers processing 50000 shipments per month have maintained temperature excursion rates within prior validated benchmarks across all lane profiles. 

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hemp chat

Sustainable

Directly address state EPR financial liability in California, New York, and Washington, and provides material data for Scope 3 packaging disclosures and PBM sustainability scorecards. Unlike Styrofoam, ColdShip packaging does not trigger disposal surcharges or bans at distribution centers or retail pharmacy partner facilities.

 

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hemp mailer chat

ColdShip packaging is grown from the ground up for cold chain.

ColdShip's hemp insulation is carbon negative, USDA Certified Biobased, and ASTM-tested to perform. No Styrofoam. No compromises on temperature control.

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