Took my RTIC (YETI clone) cup with me for a day of fishing down at the mouth of Hells Canyon yesterday.....
I filled it up with ice and water when I left in the AM and it did a fine job keeping the water cold....better than any travel cup I've ever owned....but I gotta tell ya....there's some pretty tall tales floating around on this thread....

I suspect some of these "scientific" tests are being conducted in air conditioned offices......

It wouldn't surprise me if YETI, Ozarc Trails, and RTIC cups were all made in the same factory either...

Last edited by FieldGrade; 08/10/16.