Cooler Shock Reusable Ice Packs 5x7 in - Long Lasting Cold

In this review the Cooler Shock reusable ice packs are judged on everyday practicality and cold retention for casual outdoor use. These 5 in by 7 in freezer packs aim to be the go-to small cooling solution for lunch boxes, insulated cooler totes, and compact soft coolers; the single biggest reason to buy is their unusually low operating temperature of about 18 F (-8 C), which keeps perishables and drinks colder and longer than plain ice without the mess. The reviewer tested fit, freezing ease, and durability to see if they truly replace loose ice on day trips.

Key Features

• Lasting cold: Packs freeze down to about 18 F (-8 C) so food and cans stay cold for hours without watered-down mess.
• Easy to use: The set ships with a funnel for straightforward filling, then plug, screw the cap on, and freeze for quick preparation.
• Small and mighty: At approximately 5 in by 7 in these thin packs are sized to fit lunch boxes and shoulder bag coolers while providing usable cooling surface.
• Nylon reinforced: The exterior reinforcement adds durability so the pack resists punctures and holds up to repeated freezer use.
• Safe chilling: Designed for chilled foods like yogurt and salads, they keep items properly cold for work, school, or short outdoor adventures.
• Giftable outdoor kit piece: Compact and practical, they make a thoughtful add-on for friends who camp, fish, or travel by road.

Who It's For

These ice packs are best for people who need a compact, reusable cooling solution: commuters packing lunches, families who use soft coolers on day trips, and campers or anglers carrying a small cooler tote. The thin 5 in by 7 in size is especially handy where space is limited but cold retention matters.

Those who need long-term freezer-style storage or a full-size hard cooler ice block should look elsewhere; these are intended for short- to medium-length outings and smaller containers rather than replacing a full sheet of ice for multiday food storage.

Pros & Cons

Pros

• Very cold freeze point keeps food and drinks chilled longer than plain ice.
• Compact 5 in by 7 in size fits lunch boxes, Yeti-style bags and camper freezers without wasting space.
• Nylon reinforcement and solid construction give good durability and long life.
• Easy fill process with included funnel makes them hassle free to prepare.

Cons

• Smaller packs offer less total cooling mass than large blocks, so multiple packs are needed for larger coolers.
• Not intended to replace full-size cooler blocks for multiday freezer needs.

Specifications

Product type	Reusable freezer ice pack
Size	Approximately 5 in by 7 in
Operating temperature	About 18 F (-8 C)
Material	Nylon-reinforced exterior
Includes	Funnel for easy filling and screw cap
Primary uses	Lunch boxes, soft coolers, cooler totes, camping and fishing

Our Verdict

The Cooler Shock 5 in by 7 in reusable ice packs are a reliable, space-conscious choice for anyone who needs solid cold without the mess of melting ice. They are a great value for commuters, day trippers, and anglers who use soft coolers or lunch boxes and want durable packs that freeze very cold and fit neatly into compact spaces.

Frequently Asked Questions

How do you prepare these packs?
Fill with water using the included funnel, shake to remove bubbles, insert the plug, screw the cap on firmly, and freeze until solid.

Will they fit standard lunch boxes or soft coolers?
The 5 in by 7 in size is designed to fit most lunch boxes, insulated tote coolers, and backpack coolers without taking up excess room.

How long do they stay cold?
Customers report they stay solid and keep contents cold for an entire day on typical outings, thanks to the low 18 F (-8 C) freeze point.