Salomon Soft Flask
Here's what other sites are saying:
This flexible 16 fl. oz. flask compresses as you drink it to eliminate water bouncing inside and reduce sucking effort. Blaster valve helps ensure the flask remains leak-free until you bite it.
While the Salomon Soft Flask doesn't make the same nifty noises as a bendy straw, it comes awfully close in the super-cool department. This soft water bottle compresses as you suck in fluids and won't leak when you cram it into your pack. You've to bite on the spout before any water comes out. And, given that it comes in three sizes, you'll be able to stay sated whether you're walking the dog or hiking in the heat of summer.
Stay hydrated on your run, hike, or ride with Salomon's Soft Flask. The pliable plastic body conforms to your hand for a comfortable carry and is extremely light and easily packed when empty. The bite valve top is easy to operate on the move without splashing and loosing water.
- Mountain Gear