The Stanley Flow State Quencher 40oz Tumbler in Midnight Glitz is a popular choice for its stylish design and excellent performance. It features a sleek black finish with iridescent glitter accents, making it a standout piece. The tumbler is designed to keep your drinks cold for hours, thanks to its double-wall vacuum insulation. The Flow State lid offers three different sipping options, including a straw, a spout, and a closed position. It's also compatible with car cup holders, making it perfect for on-the-go hydration.