Learn about the thermal performance of our steel bottles.
Our steel bottles feature advanced double-wall vacuum insulation with an additional copper lining. This technology minimizes thermal transfer, keeping your drinks at the perfect temperature all day. In our testing, ice remained solid for over 30 hours! For optimal performance, fill your steel bottles completely with ice and keep the lid sealed when not drinking.
Pro Tip: Pre-chill your steel bottles with ice water for 5 minutes before filling for maximum cold retention.