Watch our youtube video to see our head to head comparison of BOSS vs YETI Rambler WAY BACK in 2015. This was before the other knock off brands were released and people were so skeptical that an off brand could work the same. We were skeptical too, until we tested the product. We already personalized YETIs and we didn't want to lose quality with price. The results were surprising at the time, but many customers have purchased and enjoyed the same benefits as YETI tumblers at a lower cost.