Coleman 20oz. Brew Stainless Steel Insulated Tumbler | Black

This one lives in my truck year-round. Vacuum-insulated steel keeps a drink cold up to 15 hours with zero condensation dripping down your hand, and the tumblers stack to save space in the cooler or the cabinet. Each one comes with a clear lid for walking through the parking lot, and there's a bottle opener built into the bottom because you will forget yours eventually.