Polar Bottle Thermaluxe Vacuum Insulated Bottle

Polar Bottle, based in nearby Boulder, Colorado, has been on Active Junky’s radar for over five years with workmanlike bottle options. This new 21oz model rockets past many competitive options, starting with an 18/8 stainless build capped by their patented Half-Twist cap. This tester-applauded feature works in hot (up to 12 hours) and cold (up to 24 hours) scenarios. We rarely hang on to our drinkables that long in higher, low-humidity conditions here in the Rockies so we’re not the ones to ask on maximums for Thermaluxe. Fitting standard cup holders, this is a stainless steel water bottle that truly fits the active life.