The tumblers are made of recycled stainless steel and feature double-wall vacuum insulation to keep beverages cold for hours. The materials are food-grade and BPA-free.
Safety Tips & Steps
Wash Before Use: Always clean with a mild detergent and warm water before the first use.
No Microwave: Never place this or any metal tumbler in a microwave oven.
Avoid Dry Ice: Do not use the mug to store dry ice or carbonated drinks, as pressure buildup can damage the lid.
Check Seal: Ensure the silicone ring inside the lid is properly seated before every use to prevent leaks.
Temperature Test: When using for hot coffee or tea, always test the temperature before drinking as the insulation is highly effective.
Specifications
Key Features
Capacity: Large 40-ounce (approx. 1.18 L) capacity for all-day hydration.
Insulation: Double-wall vacuum insulation to maintain beverage temperature (hot or cold) for extended periods.
Material: Constructed from durable, often recycled, 18/8 stainless steel.
Maintenance: Most models are dishwasher safe for easy cleaning.