Review on Efficient Protection: Guyot Designs SplashGuard-Universal Shields Your Gear by Tony Addis

If you found this review helpful, please mark it as helpful. I've been using them in my Nalgenes for years. They are so strong and fit perfectly in a small mouth opening. You have the perfect fit. They can also be washed in the dishwasher which is great! I bought so many of these because I love them so much. Not only are they cute in design and colors, but they save my life on a daily basis (I hate when you end up splashing yourself with water while trying to drink from Nalgen). They also make a great gift for a friend or colleague with Nalgen (or gift them a Nalgen!). Overall, I definitely recommend this product and will continue to buy it. For more feedback and/or product testing, please contact @madski21 on Instagram