Got one for my husband and one for myself. I am know as R&D (I prefer Research and Development, he says Rage and Destruction)¯\_(ツ)_/¯. So far it's holding up and my husband really likes his. It feels like a quality shaker. It has measurements marked inside and the lid is solid unlike other shakers that you have to double check to make sure they are closed. It also holds drinks cold for a good while. I'd take this in place of all the others: Yeti, Igloo and definitely Stanley any day for a hydration/drink container - best part it doubles as a shaker for protein on the run. Thanks guys!
