Yes it can, however we do not use the lid that came with the bottle because if you do you either have to pour your drink into another cup or either drink out of the bottle which is like drinking out of a thermos that has a thick round rim on it with the threads going around it. I bought the lid that they call the Sports Straw Cap Flip Top Lid that has a straw that comes with it. It also has a loop on it too. It is made by the The Coldest Water Sports Bottle Company as well. I would not think about getting this bottle without getting the Straw Cap Flip Top Lid. Actually, it should come with the bottle but of course they would charge you more because this lid that I bought separate was $9.95 and worth every penny of it!