Muve Growler Bottle 1.9LMuve Giant Bottle 1. 9L Our new Growler is basically a portable water tank! This triple walled & vacuum insulated bottle is the ideal size to take to the beach, camping, or out on work sites where you may not have easy or constant access to water stations. Like all MUVE products, this will hold extreme temperatures for 24 hours cold or 12 hours hot. The Growler comes with a stainless wide mouth lid and silicone loop handle. Our wide mouth design means