Lifoam 4 Pack Reusable Blue Rectangular Gel Cold Pack - The Tundra 3 7/8 x 8 3/4 x 1/2

I used them in my cooler when I go to the beach. They stay frozen a lot longer than other ones. I think they're great.

Purchased these years ago to use in my lunchbox and they’ve held up pretty good. One sprung a leak so I figured it’s time to grab a couple more so I’m never without a way to keep my lunch cold. I usually use all 4 in my lunchbox which sits in my car from 7 in the morning till 1:00 in the afternoon in the hot Florida sun. My soda is always ice cold and my lunch feels like it came from the fridge.

Nice freeze paks, I use 2 of them for my lunch box, and they are partially frozen by the end of my 12 our shift. I also use two 10x16" Ice mats on the top and bottom and i use these on the sides. the Icy Cools Reusable Ice Mats :: Three (3) Pack for Coolers (10" x 16" each - Equivalent to 10 lbs of Ice) is $20 and takes up minimal space and works great in conjunction with these freeze paks. it keeps my drinks cool all day long, after 6-8 hours they are no longer "ice old" but still cold. I have a Under armour soft lunch bag without a insulated top, so if you had a lunch box that was insulated on all sides it would onbiously stay cooler longer, not to mention if you have a YETI.

Long lasting cooling.

I've had one of these ice packs for a while and it's the main one I use for my neck while I have a migraine. I was so happy to find these so I can alternate when they eventually thaw

Stay cold as expected but are very hard once frozen I though ALL soft gel ice packs stayed soft so they can be used for icing. Anyway use for my lunch bag. Last about 6 hours.

Perfect for bringing my lunch to work and keeping it cool. Ice packs are sturdy and durable.

perfect size for my Cooler, stay cold all day , works better than gel packs.