Ice Age Thermo Chill Overnite Containers Pack of 2 - Keeps Shipments

Our review of the Ice Age ON17F/2 Thermo Chill Overnite Containers finds them best suited to small businesses and home shippers who need a reliable, flat-rate solution for sending perishables. The standout reason to buy is practical: these rigid white inserts are sized to fit USPS large Priority Flat Rate boxes and, when used with Polar Tech Re-Freez-R-Brix foam refrigerant packs, provide a controlled cold environment that preserves items in transit. The review focuses on real-world usability, insulating performance, and how the container and foam blocks work together for shipping temperature sensitive goods.

Key Features

• Flat-rate compatibility: The container is designed to fit inside USPS large Priority Flat Rate and Service Personnel boxes so shippers can use flat-rate pricing while protecting contents.
• Reusable refrigerant: Polar Tech Re-Freez-R-Brix foam packs are rigid blocks that hold shape frozen or thawed and are reusable for multiple shipments.
• Leak protection: The system is intended to be used with a recommended poly bag liner and leak-proof ICE-BRIX to reduce mess from melting or condensation during transit.
• Perishable shipping capability: The insert enables mailing of perishables like chocolates, baked goods, or medications in a temperature controlled environment when packed as directed.
• Durable construction: Customers report the containers are sturdy enough to withstand handling in the mail stream, protecting meltable or fragile items.

Who It's For

This solution is ideal for small bakers, specialty food shops, florists, caregivers sending frozen breast milk, and medical supply shippers who need a predictable way to keep items cold using USPS flat-rate boxes. It appeals to anyone who values reusable refrigerant packs and a simple insert that eliminates custom insulation cutting.

Shippers who require multi-day deep-freeze for highly temperature sensitive pharmaceuticals or active temperature monitoring should evaluate professional cold-chain containers instead. Also, if you do not plan to use the recommended poly bag liner and ICE-BRIX method, performance may be reduced.

Pros & Cons

Pros

• Fits standard USPS large flat-rate boxes, making cost predictable for shipping perishables.
• Polar Tech Re-Freez-R-Brix blocks are reusable and retain shape whether frozen or thawed, simplifying reuse and packing.
• Sturdy, durable construction reported to protect meltable goods like chocolate during transit.

Cons

• Performance depends on proper packing with the recommended liner and refrigerant; not a substitute for specialized cold-chain solutions for extreme temperature control.

Specifications

Product	Ice Age ON17F/2 Thermo Chill Overnite Containers (Pack of 2)
Color	White
Compatibility	Fits USPS large Priority Flat Rate and Service Personnel boxes
Refrigerant	Polar Tech Re-Freez-R-Brix foam refrigerant pack (rigid, reusable)
Re-Freez-R-Brix size (per block)	4-1/2 in length x 4 in width x 1-1/2 in thick
Pack configuration	Container pack of 2; refrigerant sold as case of 6 (as specified)

Our Verdict

The Ice Age Thermo Chill Overnite Containers are a practical, cost-conscious option for shipping perishables in USPS flat-rate boxes; combined with Polar Tech Re-Freez-R-Brix packs and proper liners they offer durable insulation and reuse potential. Small food businesses and individual shippers will find good value here, while those needing strict cold-chain certification should consider higher-spec solutions.

Frequently Asked Questions

Will the container fit standard flat-rate boxes?
Yes, it is designed to fit inside USPS large Priority Flat Rate and Service Personnel boxes for flat-rate shipping.

Are the refrigerant packs reusable?
Yes, the Polar Tech Re-Freez-R-Brix foam blocks are rigid and reusable, holding their shape frozen or thawed.

Can I ship items for several days without thawing?
When packed properly with the recommended poly bag liner, ICE-BRIX, and refrigerant packs, customers report items remain chilled for extended periods, but performance varies with external conditions and packing method.