The Asobu® Boulder 2-in-1 Bottle & Tumbler is built for those who want maximum capacity and flexibility in one sleek design. This extra-large travel companion features double-wall vacuum-insulated stainless steel with copper lining to keep beverages cold for up to 24 hours or hot for 12. The dual-function lid offers two ways to sip: a flip-up straw for cold drinks and a secure flip-open lid for hot beverages like coffee or tea. The interior is coated with Puramic™ ceramic to eliminate metallic taste and preserve flavor with every sip. A built-in carrying strap adds convenience for on-the-go use. BPA-free, lead-free, and compliant with FDA and Prop 65 standards. Dishwasher safe for easy cleanup (hand washing recommended if printed in color). Retail gift box included.