IRON °FLASK Co-Pilot 40oz Insulated Tumbler with Flip-Cap & Straw

The IRON °FLASK Co-Pilot 40 oz is a double-wall vacuum-insulated stainless-steel tumbler with a flip-cap and detachable straw, designed for all-day hot and cold beverage retention. Built from 18/8 stainless steel with a durable exterior finish, it features a leak-proof seal and fits standard car cup holders. The tumbler keeps drinks cold for extended periods and hot beverages warm for hours. It's dishwasher-safe (lid hand-wash recommended) and comes in multiple colors including Dark Pine. At $16–17, Iron Flask offers strong value—excellent insulation and build quality at a mid-budget price point. Ideal for commuters, outdoor enthusiasts, and everyday travelers seeking a reliable, affordable alternative to premium brands.