DESCRIPTION

Zip-open, collapsible water reservoir for use as a lightweight water carrier or a replacement water bladder. Big-Zip features large reservoir opening for easy filling, cleaning or addition of ice cubes; zip-lock provides a watertight seal. Lightweight, puncture-resistant 3-ply plastic laminate is lined with food-grade polyethylene that won't flavor your water with a plastic taste. Durable welded construction lets you boil, freeze, inflate, or collapse the bag over and over again. Comes with a screw-on cap--drinking tube assembly not included.