The Ultimate Backcountry Water Bottle We set out to build a better water bottle--one that&';s completely biocompatible, won&';t leach or corrode, works with common water filters, and offers multifunction versatility. The patent pending Titanium Para-Bottle(TM) features 7 feet of integrated replaceable 550 paracord, individually machined geometric shaped lid, and pure titanium construction. Your search for the ultimate water bottle ends here!