Vargo Titanium Para-Bottle
If you can’t settle for anything but the best, Vargo’s Titanium Para-Bottle is for you. Both the machined geometric shaped lid and the bottle itself are made of nothing but titanium — albeit with a food grade silicone o-ring separating to seal — for a vessel that won’t corrode or leach anything into your water and that’s entirely biocompatible. The cap and bottle are also tied together with braided 550 paracord that handily unfurls to 7 feet in length if ever you need it. It’s sized to slip into most water bottle pockets as well as work with common water filters and holds one litre (34 oz) of water.