Snug Sip Universal Water and Juice Silicone Bottle Toppers - Soft Spout Conversion Caps with Spill Proof Valves - Silicone Bottle Covers for Travel - Includes 4 Toppers and 4 Cases

Work really well on any kind of a water bottle a little hard to get out at first, but once it’s used a couple times it works better. It will leak a little sometimes after you used it for a while. Would be great for breast-fed babies.

My favorite invention. Love to keep these in my bag for my kids if we forget their water bottles we can transform any water bottle into a kid friend option! The seal is great and the kids and use it themselves without spilling. Traveled with these and they’re universal. They fit perfectly in a purse or a backpack or just leave it in your car for emergencies. Whoever invented these is a genius because the design is great. Good value for money and you can take them anywhere!

Makes traveling with a toddler so much easier. We usually keep a sippy cup in her backpack but I also keep these on the off chance her cup gets forgotten. If your child is determined they can get it off the bottle but we have trained her to leave it and it is relatively leak proof when it is used.

Love these and they fit danimals!

To put it simply, it needs an air inlet valve. It's okay for kids that are only sipping. In general, this is everything it says it is! Fits on a typical water bottle (generic water bottle verified) and sports drink bottles (Body Armor verified). It will not spill and the nozzle's cap fits tight over the nozzle. I have even dropped it (for testing) and it stayed on. Also, the cap/nozzle didn't look any worse for wear after the drop since it is all a very stiff and thick silicone piece. So good on durability. The problem is the function as a drinking nozzle! As an adult I test these things to guide my kids. The vacuum force needed to drink is a bit surprising. Lightly biting the tip of the nozzle helps, similar to how you might for a camelback nozzle. From there the problem is the back pressure in the bottle. The cap doesn't have a way for air to go into the bottle as you draw on the nozzle. This causes a vacuum inside the bottle and if the bottle doesn't give, then you're gonna have a bad time. Luckily most bottles do give. Body Armor bottles don't give and it makes drinking from them like lighting a cigar though a coffee straw. So, yes, it's a great cap, but don't use it for chugging drinks like a parched athlete. Cheers!

I really wanted to love these but unfortunately I can’t. They are almost impossible to drink out of and they do not stay on the bottles as well as I anticipated.

LOVE, LOVE, LOVE these! I am seriously considering dumping our bottle collection and buying several of these instead! My toddler loves them; they are spill free and mess free. They are easy to install and such great solid quality! They are so easy to clean and fit in my purse, his diaper bag, my pocket. I can literally take them with us wherever, whenever. I no longer need to worry about dragging around an assortment of bottles for my sons variety of beverages. If there was ever a must have product for a mom of littles, it is these!

They work great! I love the fact they all have a case for easy travel! They fit any size bottle! Easy to use but hard for my kiddo to take off which is awesome! Seal completely no leaks! Good purchase for price

cumplio con mis espectativas

We love these things. They're so handy to leave in the diaper bag in case we need to add a spout to a regular bottle. So far we haven't found anything it doesn't fit onto, it's pretty universal. Yes, it will come off if you pull on it or if your kid manipulates it enough. Or if you squeeze the bottle too hard. But it's more versatile than a straw, and better for the environment. We love this for traveling.

Absolutely horrendous can’t use them at all you have to bite down on the top to get any liquid out! Would not recommend!