Whichever way your day flows, the tumbler keeps you refreshed with fewer refills. Double wall vacuum insulation means drinks stay cold, iced or hot for hours.The plastic spraying process ensures that the paint will not peel off after long-term use. The built-in leak-proof silicone ring prevents water from leaking when shaken, making travel more convenient. The mouth of the cup is finely polished for a comfortable entrance, and it is designed with a handle for easy and effortless handling.The size fits just about any car cup holder, keeping it right by your side.Can be customized to your needs.