Getting a drink used to be a simple on-the-fly operation...reach down, open the bottle with teeth, squeeze out a slug, pop it closed with chin, and put back in cage. This is a perfect example of how overengineering a simple product makes it unusable. Now you have to come to a full stop to drink as you'll need a moment to guess which way to turn the mechanism to open, then use both hands to do so. Other weird features:
1) Nozzle has a bizarre, deep inner cup that collects bugs, dirt, and mud. I guess it can be used to put out a cigarette.
2) Nozzle has an attachable $7 add-on protector that requires an extra hand to operate.
Wish I'd kept the packaging, cuz I'd have certainly returned it.