Hydro Flask Water Bottle - Insulated Stainless Steel - Wide Mouth Flex Lid, Non Spill, Leakproof and Refillable in 20 Oz Birch Gray

I use a smaller, screw top, insulated Hydroflask. I wrap the pre filled syringes in a sealed baggie, roll up, place a rubber band on the roll, place in the bottle, fill with ice, and screw top on. I place it in the bottom of my travel back pack and I sail through TSA and have never had a bag check. https://a.co/d/04gPznzk