Patented One Piece Shipping Liners

The flexible liner which started a revolution. 12 years ago, we set off on a mission to offer a more sustainable alternative to hard EPS and PUR foam coolers. The Coldkeepers one piece shipping liner was born. Initially offered with soft foam open cell polyurethane, the design was endlessly improved to incorporate alternative materials such as post industrial denim or cotton. The immense success of the line both with pharmaceutical companies and large direct to consumer food delivery businesses enabled us to expand our product offering to a wide array of thicknesses and sizes. The main advantage of this innovative solution being its ability to ship flat and save on inbound freight and warehousing costs as well as the quick turnaround for custom sized liners without prohibitive tooling costs which allowed us to pioneer the introduction of seasonal use liners to minimize costs (Thinner liners for winter, thicker for summer, etc.). The one piece design also allows for quick product implementation by fulfillment facilities versus a two piece counterpart. Feel free to Call our sales team today to learn more about the liner which started it all. Protected by US and International patents.


 Proven reusable leak proof design (Ask us about our close loop recycling program)

 One piece design. Flexible design. Folds and ships flat (Save on warehousing and transport costs).

 Trusted Performance by Fortune 500 pharmaceutical and meal kit delivery companies

 Great for food or life science applications (Ask about our ISTA prequalified shipping solutions)

 Protective shock absorbing construction

 Samples available upon request

 Custom printing / sizing available. Various insulation options available upon request.

 Protected by US and International Patent # 9,290,313, 9,650,198, 9,950,830, CA2,685,211, 101754898, 2657141, HK1146022


Take advantage of our expertise and learn about thermal packaging alternatives.

Coldkeepers has been the leader in the insulated shipping business since 1998. Consistently up-to-date with the industry’s best practices, we can answer any questions you ask and face any packaging challenge so you can deliver your products in the most efficient way.

Simply give us a call at 888.216.1700 or contact us and request a custom quote.

Large Insulated Shipping Box
Top view of an Insulated Shipping Liner