Recently I ordered the new Engel Tumbler to try it out and see first hand how it compared to the Yeti Rambler. Both are well insulated 30oz. cups and each comes with a lid and retail for $39.99. Unique to the Engel is a non-slip bottom as well as a spill-proof lid. After using the cup for a while I decided it was time for a head to head and the results are in the video below. Both cups were purchase from Sunjammers Watersports. http://sunjammers.com/drinkware
