Guyot Designs' Splashguard

Sometimes the simplest solutions are among the best. Take Guyot Designs’ Splashguard Universal, a $3.25 cap designed to fit all wide-mouth water bottles from Nalgene, GSI, and the like.

As the name portends, the SplashGuard’s purpose is to prevent that splashing, sloshing effect that comes when trying to drink while on the move.


There’s a small opening on one end from which you sip; a larger opening on the other side lets you add water without removing the cap.

Made of food-grade silicone, the little cap slips in flexible and easy.


The silicone rubber won’t absorb or retain odors and tastes, and it can be sterilized by boiling.

Weight: 0.5 ounces

Price: $3.25

Company: Guyot Designs,

Posted by greg - 07/23/2007 11:54 AM

I own one of two of those. My wife especially likes them for safer drinking. Whenever I use one, I really wish I could invent something so simple. I bet whoever invented it is retired right now. :)

Posted by Tim - 07/24/2007 01:50 PM

Yeah, whenever I see something like this, I wonder why the original company isn’t making them. Don’t they watch their customers and see the problems they encounter? This is dead simple and imagine the margins!

Posted by wade - 07/26/2007 03:33 PM

I have the smiley face version… love it.

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