60 hour heat packs for shipping by Priority 2-3 Day Mail?

[happy1892]

Hi. I am running low on 96 hour heat packs, but I have some 60 hour heat packs still. I am going to ship some mantises soon to California and other places. Would 60 hour heat packs last long enough for 2-3 Day Priority Mail?

 

[The Wolven]

Hi. I am running low on 96 hour heat packs, but I have some 60 hour heat packs still. I am going to ship some mantises soon to California and other places. Would 60 hour heat packs last long enough for 2-3 Day Priority Mail?

I would think so. I usually stick with 72 hour heat packs, but 96 are probably better.

 

[agent A]

depends on if there's a delay

 

[hibiscusmile]

I use them all the time, haven't had any complaints.