Review on Efficient Protection: Guyot Designs SplashGuard-Universal Shields Your Gear by Todd Phillips

I love this thing, it's like a leakproof adult bottle. Now I can drink Nalgen out of my wide mouth without spilling water on me huh. Partly it's user error, but I can't see that this product exists. Easy to clean, easy to use, love the smiley face sticker BUT sometimes when you drop your water bottle it falls into your water and sinks. to the floor. Just something to be aware of.