The flask looks great and is definitely easier to clean than other flasks. Only issue is that the lid does not clip closed, so if you forget to hold the top then protein shake goes everywhere except your gainz. This also unfortunately means that it won't keep the contents as cold as it could for as long as it can. An unfortunate design flaw. Please update lids and make availbe for purchase or send people who have already bought these a better lid or lid replacement.