Duix Thermo Combines Minimalist, Fully In-house Developed Design with Thoughtful Details & an Impressive Recycled Content of 81%. with a Capacity of 500 Ml & Double-wall Vacuum Insulation, It Keeps Beverages Warm for Up to 5 Hours or Cold for Up to 30 Hours. Designed to be Completely Leakproof, It Offers Maximum Everyday Convenience at Work or on the Go Thanks to Two Practical Openings. the Smaller Opening Ensures a Pleasant Drink Experience, While the Larger Opening Makes Filling & Cleaning Effortless. a Special Highlight is the Cleverly Engineered Zinc-alloy Carabiner: This Exclusive Reflects® In-house Development Fits Perfectly Onto the Silicon Ring Integrated into the Screw Cap & Prevents Annoying Rattling. This Gives the Bottle a Particularly Premium Look & Feel. for Individual Style, the Silicon Ring is Available in 18 Fresh Colors. Minimum Quantity: 50