Well I'll be doing a 4-day safari soon, and I don't own a FRIO. Instead, i only own cooling bags that of course lose the cold temperature with time. But then again, my insulin pen never goes in the fridge, and the insulin cartridge is replaced every 4 days approximately. So would it really be a bad idea if I go with 2 filled pens (actrapid and lantus) and at least two closed insulin cartridges? I mean what do the people who use half the insulin I use do?
Additionally, it's winter time and the desert temperature could reach 0°c at night. So it's safe half the day, right?
Thanks for your help!