IRON °FLASK Co-Pilot 40oz Insulated Tumbler

The IRON °FLASK Co-Pilot is a 40oz vacuum-insulated stainless-steel tumbler with a double-wall construction designed for all-day temperature retention. It features a flip-cap lid with straw, maintains drinks cold or hot for hours, and is engineered to fit standard cup holders. Made from 18/8 stainless steel and BPA-free, it combines solid insulation performance with an affordable price point. The leak-proof flip cap and included straw make it practical for daily commutes, travel, and outdoor use. Dishwasher safe for easy cleanup. Iron Flask positions this as a value-oriented alternative to premium brands like Stanley and Yeti—delivering comparable insulation without the premium brand markup. Best suited for cost-conscious shoppers seeking reliable, everyday temperature control.