How to use this ice pack, and how many hours does it stay cool?

Mine only lasted about 45 minutes... Last month I bought another brand of backpack for my daughter, Scothen backpack cooler, it came with 12 ice packs that lasted 3 hours and was very light, I would recommend it!

What's the difference between the "solid" and the "ice packs" patterns? I cannot see a difference in the picture or the description. Restocking?

The description lists solid and ice packs as a pattern so I don’t think there’s any difference in the type of product. I ordered the green and they are perfect for lunch box/small coolers.

Can these fly on an airline

Yes you can fly with these on a plane. But there are specifications. If it's in your checked baggage NOT carry on you can have as many as you want. Now for your carry on luggage, as long as it is completely frozen you can have as many as you want but again must be 100% frozen. If it is partially thawed then it no longer is considered a solid but now a liquid. And as a liquid it must be under the 3.4 ounce allowed and in your 1 quart sized bag for liquids. And I'm not sure how much liquid they actually contain. Hope this helps.

How long can they stay cold?

I can tell you I keep 2 in my lunch bag for work and everything stays cold for 6 hours, from when lunch is packed and when I actually get to eat it 😁 hope this helps answer your question.

Slim Ice | Desertcart Croatia

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Description

❄️ Stay Cool, Look Cooler — The Slim Ice Pack Revolution!

CHILL THAT LASTS - Powerful cooling technology keeps your food and drinks fresh and cold for hours, even in summer heat.
SLEEK SPACE SAVER - Ultra-slim 4.75" x 0.5" x 5" design fits snugly in any lunch bag or cooler without bulk.
SAFE SUSTAINABLE - BPA-free, non-toxic materials make these reusable ice packs a smart, health-conscious choice for daily use.
VERSATILITY MEETS STYLE - Perfect for work, school, beach, camping, or picnics — add a bold pop of color while staying eco-friendly.
BUILT TO BRAVE THE OUTDOORS - Leak-resistant, break-proof construction ensures no mess and maximum durability on every adventure.

Cool Coolers by Fit + Fresh Slim Ice Packs are a set of four ultra-slim, reusable ice packs designed to fit seamlessly into lunch bags, coolers, and totes. Measuring just 0.5 inches thick, they deliver long-lasting cold retention for hours without leaking or sweating. Made from durable, BPA-free plastic, these leak-proof ice packs are perfect for keeping food and drinks fresh during workdays, outdoor adventures, or travel. Their compact size and bold colors make them a stylish, eco-friendly essential for any millennial professional on the go.

Specifications

ASIN	B0057PDZJ6
Additional Features	Leak Proof, Portable
Best Sellers Rank	#24 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Camping Cooler Accessories
Brand	Fit & Fresh
Brand Name	Fit & Fresh
Capacity	11.8 Cubic Inches
Chamber Depth	0.5 Inches
Chamber Height	0.25 Inches
Color	Blue
Container Type	Bag
Customer Reviews	4.7 out of 5 stars 32,069 Reviews
Global Trade Identification Number	00700522117582
Included Components	4 ice packs
Insulation Material Type	Plastic
Item Dimensions D x W x H	2"D x 2"W x 5.25"H
Item Type Name	Cool Coolers Slim Ice Pack
Item Weight	1.3 Pounds
Manufacturer	Fit & Fresh
Manufacturer Part Number	336FF
Material	Polypropylene (PP)
Material Type	Polypropylene (PP)
Model Name	Cool Coolers Slim Ice
Model Number	336FF
Package Information	Bag
Pattern	Solid
Product Care Instructions	Wipe with Damp Cloth
Product Dimensions	2"D x 2"W x 5.25"H
Recommended Uses For Product	Beach, Camping, Cooler Accessories, Lunch, lunch bag, coolers, lunch tote, lunch Box,
Size	4 Pack
UPC	700522117582
Unit Count	4.0 Pack

Reviews

V**R

22.04.2025

J**O

17.05.2025

B**H

26.02.2026

J**J

9.10.2025

A**Y

9.03.2026

S**N

16.03.2026

T**K

10.05.2025

M**S

12.07.2024

G**A

7.07.2025

L**A

19.11.2023

V**A

2.04.2026

O**R

21.07.2025

N**A

31.01.2026

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Slim Ice

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