Big Zip EVO

Lightweight, minimalist, taste-free hydration system from Platypus with a unique SlideLock™ closure for easy filling and cleaning. Details Made with a Polyurethane/Polyethylene Film Embedded Silver-Ion for Mold and Bacteria Protection Silicone Bite Valve HyFLO™ Self-Sealing Bite Valve SlideLock™ Closure Pincher Grip for Easy Filling High Mount Quick Disconnect Leak-Proof Shut-Off Valve Semi Rigid Center Baffle for Easy Cleaning and Drying BPA-Free, BPS-Free, Phthalate-Free Made in the USA of U.S. and Imported Materials   2 Liter (70 fl oz) 3 Liter (100 fl oz) Weight 6 oz (0.17kg) 6.5 oz (0....