I got this one from Amazon and it easily fits six bottles in there. I love it cos it seals so if the liquid spills in my box at least it will be contained for the most part.

OZCHIN 2021 NEW Hard Shell Bag with Combination Lock Odor Proof Container Travel Protective Carrying Storage Bag https://www.amazon.com/dp/B08CC1SH8G/ref=cm_sw_r_apan_glt_fabc_JDPHZTF0GHDXKZB5PWEY