A metallic take on a classic hue, Pyrite is a winning mix of lustrous brass and antique gold. S'well bottles feature Therma-S’well® Technology with triple-layered, vacuum-insulated construction designed to keep beverages colder or hotter, longer than all the rest. Offers a condensation-free exterior that won't sweat in your hands or bag. BPABPS-free and reusable. Hand-wash only.