Dolphin Collection Tritan Water Bottle with holding strap, 750ml, Blue

True story, this is the best water bottle I could get for my school going son. I’ve shopped retail stores and online stores and haven’t found anything else that can substitute this. My criteria was
– BPA free, of course
– Large capacity but not too large
– Transparent so that it is easy to tell at once whether the person has been hydrating himself/herself
– Mouthpiece is not exposed, YET it must be easy to flip open and drink from.
– Easy to wash and clean