Product information:Colors: Halls Rhythm Dual-Use Insulated Bottle — Forest Brown — 650 mL [Convenient grip, with a 316L stainless steel inner liner]; Halls Rhythm Dual-Use Insulated Bottle — Sweet Pink — 650 mL [Convenient grip, with a 316L stainless steel inner liner]; Halls Rhythm Dual-Use Insulated Bottle — Vibrant Lemon Yellow — 650 mL [Convenient grip, with a 316L stainless steel inner liner] Inner Liner Material: 316 Stainless Steel Insulation Performance: 6–12 hours Material: 316L Stainless Steel Outer Shell Material: 316 Stainless Steel Style: Straight‑Sided Cup Function: Heat and Cold Retention Design Style: Modern Minimalist Capacity: 650 mL