---
product_id: 257220189
title: "Ice Packs for Coolers, Cooler Freezer Packs, The Coldest Pack at 18 Degrees F. No Ice Needed, Reusable"
brand: "cooler shock"
price: "S$76"
currency: SGD
in_stock: true
category: "Cooler Shock"
url: https://www.desertcart.sg/products/257220189-ice-packs-for-coolers-cooler-freezer-packs-the-coldest-pack
store_origin: SG
region: Singapore
---

# Reusable & eco-friendly Keeps at 18°F for hours Made in USA, safe formula Ice Packs for Coolers, Cooler Freezer Packs, The Coldest Pack at 18 Degrees F. No Ice Needed, Reusable

**Brand:** cooler shock
**Price:** S$76
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay cool, stay ahead—because your lunch deserves the coldest pack in town!

## Quick Answers

- **What is this?** Ice Packs for Coolers, Cooler Freezer Packs, The Coldest Pack at 18 Degrees F. No Ice Needed, Reusable by cooler shock
- **How much does it cost?** S$76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/257220189-ice-packs-for-coolers-cooler-freezer-packs-the-coldest-pack)

## Best For

- cooler shock enthusiasts

## Why This Product

- Trusted cooler shock brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Transparent:** USA-sourced, non-toxic ingredients with no mystery chemicals
- • **Eco-Smart & Reusable:** Hydrate, freeze, and reuse again and again—cut waste, save money
- • **Unmatched Chill Power:** Stays icy cold at 18°F well past lunchtime, 2-3X typical ice pack performance
- • **Long-Lasting Freshness:** Keeps food fresh up to 48 hours, preventing spoilage and bacterial growth
- • **Perfect Fit for On-the-Go:** Large lunch bag size fits all standard lunch boxes and school bags

## Overview

Cooler Shock Ice Packs deliver industry-leading cooling at a consistent 18°F using advanced phase change technology. Made in the USA with safe, non-toxic ingredients, these reusable packs fit all standard lunch boxes and keep food fresh up to 48 hours. Perfect for professionals and families on the move, they combine eco-conscious design with superior performance to ensure your meals stay chilled and safe without the mess of ice.

## Description

Five Cooler Shock high performance, reusable, fill and save lunch pack ice packs perfect for on the go. Final filled weight is 1 pound which is about 2 to 3X the performance and size of typical ice packs. These Cooler Shock packs are designed to keep your lunch bag cold for up to 48 hours depending on use

## Features

- Safe USA sourced formula, no mystery chemicals from China - Large high-performance reusable lunch pack fits all typical lunch boxes and school lunch boxes - 1 of 3 sizes available, click Cooler Shock at top of page for full line
- Uses phase change science to cause pack to be at 18 degrees Fahrenheit well past lunch time
- Shipped with Cooler Shock dry mix, you hydrate and save. Simple instructions - made in the USA
- Non-toxic ingredients, child safe. Lasts up to 10 hours, reusable again and again...
- Avoid bacterial growth and spoilage with this pack when used as directed - NOTE:Our latest screw cap does not have a bottom rim, it has ridges. The cork is the primary seal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078FR9CND |
| Additional Features | Portable |
| Best Sellers Rank | #57,894 in Sporting Goods ( See Top 100 in Sporting Goods ) #199 in Camping Cooler Accessories |
| Brand Name | Cooler Shock |
| Capacity | 500 g |
| Chamber Depth | 18 Centimeters |
| Color | Solid Black |
| Container Type | Bag |
| Customer Reviews | 4.6 4.6 out of 5 stars (8,744) |
| Included Components | funnel |
| Insulation Material Type | Polyester |
| Item Dimensions D x W x H | 2.5D x 16.5W x 19.1H centimeters |
| Item Weight | 272 g |
| Manufacturer | Cooler Shock |
| Manufacturer Part Number | 43237-2 |
| Material Type | Just Add Water Ice Packs |
| Model Name | Ice Packs |
| Model Number | CS-FRZPK-S5 |
| Number of Items | 5 |
| Number of Packs | 5 |
| Pattern | Solid |
| Product Care Instructions | Handle gently, clean up spills promptly, store in a cool, dry place, and ensure it is fully dry before storing. |
| Recommended Uses For Product | Camping, Fishing, Picnic, Road Trips |
| Size | Lunch Bag Size |
| UPC | 854850006251 |
| Unit Count | 5 Count |

## Product Details

- **Brand:** Cooler Shock
- **Capacity:** 500 g
- **Colour:** Solid Black
- **Material:** Just Add Water Ice Packs
- **Package information:** Bag

## Images

![Ice Packs for Coolers, Cooler Freezer Packs, The Coldest Pack at 18 Degrees F. No Ice Needed, Reusable - Image 1](https://m.media-amazon.com/images/I/810+TmAlI0L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How long do these stay frozen for ?**
A: Mine have stayed frozen for approximately 9-10 hrs. I left food in the cooler,which was well-insulated, and it which was still cold when I got home. This was kept in office setting with temps in room in the 70’s.

**Q: When you say that this item is colder than ice, what does that mean? ice can be cooled to any temperature unless i'm mistaken. a rock can be 18*f.**
A: Karæthon's answer is correct.  Freezing or melting overcomes the  "latent heat of fusion" which is about the same heat as is required to raise the temperature of (for example) liquid water by almost 80°F, or frozen water (ice) by about 150°F.   So an ice pack in a cooler will spend most of its time at it's melting point. Once it's all melted, the subsequent temperature rise will be very quick.

**Q: Are these reusable?**
A: They are reusable.  There is an initial "just add water" setup to change the dry powder to gel, then you throw them in the freezer for several hours and they are ready for use.

**Q: If I were to use two of these together, would I have similar cooling capacity as one of the medium-sized packs?**
A: Not positive of that but I am amazed at how well these things work.  4 of them keeps a large cooler super cold.

## Frequently Bought Together

- Cooler Shock Reusable Ice Packs for Cooler - Long Lasting Cold Freezer Packs for Coolers and Lunch Boxes - Cooler Ice Packs for Camping Gear, Fishing, Road Trips, Beach Must Haves
- Cooler Shock Ice Packs - Reusable, Premium, Large Pack and Lunch Set for Long Term Use - Cools Faster Than Ice - Cooler Accessories
- Cool Coolers by Fit + Fresh Slim Compact Reusable XL Ice Pack, Perfect for Lunch Boxes, Coolers, and Beach Bags

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**Shop now:** [https://www.desertcart.sg/products/257220189-ice-packs-for-coolers-cooler-freezer-packs-the-coldest-pack](https://www.desertcart.sg/products/257220189-ice-packs-for-coolers-cooler-freezer-packs-the-coldest-pack)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-11-07*