For my $ and experience the Coleman Extreme coolers are a great buy not bear proof but keeps cold a long time. The lid has a positive seal and if you are not in and out of it all day keeps ice for 3 or so days in 70+ degree weather. My two cents.
From what I was told, Yeti did not apply for a patent on there cups. All the others are made to the same specs due to no patent infringement. The basic reason a yeti is an artic is a Walmart brand is a whoever makes them.