The Platypus Big Zip LP hydration system comes with an easy-to-clean wide-mouth opening and a low-profile design that fits the back panel of any pack.
* Wide-mouth opening with Slidelock™ closure is easy to refill and locks securely.
* Low-profile design rides flat in your pack.
* Taste-free and BPA-free for clean drinking.
* Silver-ion antimicrobial keeps it fresh.
* Quick-release hose and shutoff valve make drinking and refilling easy.