Stainless steel, cup holder compatible, fits right in your pack—our largest reusable, refillable Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to 12, and holds enough hydration for tons of fun. • TempShield ® double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12 • Flex Cap is leakproof when closed • Honeycomb™ Insulated Cap for maximum temperature retention • Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer • Color Last™ powder coat is durable, sweat-free and colorful • BPA-Free GUC