Wide Mouth Easy Sipper

Clever idea, imperfect implementation. Sits in the neck of the wide-mouth bottles, held in place by what little friction the smooth plastic offers. It can easily fall into your bottle with only a little jarring, leaving it floating atop your drink until you manage to fish it out. Best suited to smaller bottles, as the weight of 48 oz of water in a full Silo bottle can budge this thing and give you a good bath if it’s not perfectly positioned. But hey, it is called a sipper, not a chugger. Better to go with the OTF cap if you guzzle your water like I do.

No More Soaked Shirts on the trail !
Fits perfect. Yes it looks WAY too small in the package when it arrives, especially when looking at the closed Nalgene bottle. It is made to fit inside the throat not on the top of bottle. Set it in the opening and push in slightly and it stays put. Easily pulls out to add water or ice. Easy clean and wipe after use.

love these waterbottles