cant beat the Ozark cups at walmart. 9 bucks vacuum insulated. 32oz and it fits perfect in the jeep cup holders. I have four of these for work. I tend to loose them or they come up missing at customer facilities but for 9 bucks it hurts alot less than my hyrdos i take for camping. and honestly ive had ice last longer in my ozark cups than the one yeti cup i have.
I bought one of these and can't say enough good things about it. Fits my 40oz tall Hydroflask without rattle. you place it in the cup holder and twist the bottom. It has a compression system to hold it in place. Works perfectly, trail proven.
The wife and I both use 40oz hydro flasks and use the blue ridge overland MOLLE water bottle holders on the back of both seats. Works great for us and keeps the cup holders free for specialty drinks and such.