AUVON Expandable Insulin Cooler Travel Case with 2 × 180g Ice Packs, 10-12.5H Cooling Time for Flights & Road Trips, Portable Insulated Diabetic Cooler Bag for Insulin Pens & Essential Supplies

This is easily done by simply placing in carryon. No need to worry about temperature control as long as it does not get hot. I travel over 24 hours using a zipper bag from Amazon that has gel packs. I put all my accessories inside along with the pharmacy label off a box. I carry pens, pen needles, alcohol wipes, a matchbox size sharps container, a few syringes in case of pen failure so I can extract doses. I also pull out the excess. AUVON Insulin Cooler Travel Case,... https://www.amazon.com/dp/B0B56LKFQW?ref=ppx_pop_mob_ap_share