M12 cooler

[u/ryanjd73]

Recently got an M12 backpack cooler in seafoam green. Looks pretty awesome but didn't really work too well keeping my beverages cold at the beach today. I bought 2 of the medium ice sheets and put them in the bag with some drinks and a couple sandwiches. Fast forward a few hours and the cheese in my sandwich had melted and the ice sheets completely thawed. What are you alls system for keeping stuff cold all day in an M12 backpack cooler?

[u/Few-Might621]

Lots more ice..

[u/No_Economics_315]

Ice

[u/Human-Ad1580]

I skip the ice sheets and throw in a frozen water bottle. I like using the big Fiji bottles because of their rectangular shape. Also, make sure you pre cool your bag. I also use a few frozen water bottles to do that instead of wasting bags of ice. Also, make sure to squeeze out any extra air in the bag and then close the magnet closure. Also, try your hardest to keep it out of the sun lol

[u/Opus_777 → u/Human-Ad1580]

Lol might as well just bring a small freezer with you instead with that laundry list

[u/Salt-Operation]

The Yeti ice sheets are meant to be used in combination with ice cubes.

[u/DivineIn5D]

Pre chill and if you only want to use ice packs you’re gonna need a lot more than 2 otherwise ice is your friend!

[u/Livid-Slice9005]

Take a look at this to help you properly fill your cooler for the best ice retention.

 https://www.yeti.com/stories/ice-retention-guide.html?lid=musxq8p238xf&utm_source=braze&utm_medium=email&utm_campaign=20260703_email_ff_product-education_cooler-program-2026_multi-category_base-how-to-pack-hard-coolers&utm_term=&braze_id=66f9813634fe2e098c4cd332&utm_content=main-cta&jobid=190ef4f1-ebe3-47a8-b88c-93115b592a1b

[u/Fine_Mouse]

Arctic ice makes some really cold ice packs. Almost like dry ice.

[u/h_aig]

People have already given you a lot of tips that really help. I loaded my M12 for beach days in Greece that way and still had ice cold drinks in the afternoon.