All plastic bottles and containers are not alike.
Nalgene, gives you that extra measure of security not available with other containers. Made with super-tough materials, Nalgene closures have no liner that can wear, crease, leak or cause contamination. The container walls are generally thicker and more split and puncture-resistant than lower quality bottles.
Guaranteed leakproof, they consistently keep your contents fresh and provide added protection against leakage and breakage.