Green Sprouts Water Bottle Cap Adapter Toddler

(New edits added to "COMPATIBLE" section below.)

Sometimes I forget to pack the baby's one and only sippy cup.

This 3-piece water bottle cap adapter works well, but yes, I agree that it doesn't have a vent so as the baby drinks from the water bottle through this adapter, the plastic walls of the bottle collapse. Every 4-5 sips, I take the bottle away from the baby, unscrew the adapter, let the air fill up the bottle again, and then hand the whole thing back to the baby. Small inconvenience, but an inconvenience nonetheless. Thus, 4 stars.

That drawback aside, there are plenty of benefits:

1. COVER EXISTS! It DOES have a clear cap that snaps over the spout! (At least, mine does! I did wonder why previous customers didn't get their caps...)

2. PORTABLE! It's small enough to keep in a pocket, purse, pacifier bag... even a Gladware 1/2-cup mini round storage container (the kind you can find at a supermarket or Amazon, 8 units per pack ). Yes, a sandwich bag will also do in a pinch.

3. EASY TO CLEAN! Each piece -silicone spout, green "neck" and clear cap -are extremely easy to handwash using the smaller nipple brush attachments that most people have. If water's the only thing that you use it for, there's less of a worry about scrubbing off juice bits.

4. COMPATIBLE! For Poland Spring bottles, the adapter works if the green "neck" is screwed with the logo upside down. Although the directions do say this clearly, I'd say it here too: If the adapter doesn't work with the particular water bottle you have, try re-inserting the spout through the green neck but in the opposite direction so that the logo on the green neck appears upside down. The green "neck" is threaded on both ends, expanding its compatibility with a range of water bottles.

EDIT Oct. 2011: Compatible with the Platypus Platy Soft Bottle with Closure Cap. This product combo has proven to be a very convenient way to carry baby's drinking water.

5. CHEWABLE! My baby likes chewing thoughtfully on the silicone spout between sips. No damage yet, to baby or bottle cap adapter. But I'm sure Green Sprouts will warn against treating this adapter as a toy. It's not a toy, okay?

6. NO LEAKS! If the adapter is screwed on correctly for the water bottle you have (and assuming the two are compatible), turning the water bottle upside down does not create a shower. If anything, it's hard to get liquid out... see drawback above.

Green Sprouts never disappoints. These turn a normal water bottle into a sippy cup instantly. I keep some in my purse, my diaper bag, and my car for times that I forgot a sippy cup or when the cup has something other than water in it. My girls (2 & 1 year old) actually drink more water with this because they think it is so much fun to drink out of a "grown-up" water bottle.

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I've had it for 2 days now. And at first I wasn't happy bc it didn't fit the 3 brands I tried. But then I pulled the spout out to wash it and I realized it has 2 different sizes. So I flipped it over and tried it again on all 3 brands. And it fits. It fits Auqafina, Nestle Pure Life Juniors, and Sam's Club minis. But the other reviews about not having a vent are right. So I poked a small hole on the other side of the spout to make a vent. Now that it has a vent and I know there are 2 different sizes I love it. It doesn't leak and she gets to feel like a big girl. If I had paid more than $4 I would have been a little more upset about the vent.

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I agree with a lot of the reviews here that it needs some kind of venting. My 2 yo can get a little water at first, but then sucks on it for a few minutes, gives up and puts it down. It's a great idea and I wished it worked, but it is too much trouble. I am considering making the hole larger; it may leak some out, but then it will be usable. I really wanted to rate this higher, but considering it doesnt't work like it should I can't.

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My one-year-old thinks it is so much fun to drink water out of a "big boy" cup or water bottle. Thing is... he ends up soaking wet. I saw this in a store and bought it without hesitation. I carry it with me in my bag that way I can offer him water whenever he wants! The only negative is, the cap will not fit on Dasani water bottles. I make a point not to drink Dasani, but sometimes it is the only thing available... like at the ball park or YMCA vending machine. Other than that, it's great and easy to clean.