Fits perfectly in standard size car cup holders! Classic curves, perfect proportions, and custom colours are just the start of what makes our Ceramic Reusable Bottle so special. Multi-award-winning product design. Triple wall vacuum insulated to retain heat or cold Durable stainless steel bottle – made to last Ceramic lined for a better taste experience BPA free, FDA EU approved safe materials Dishwasher-safe lid. Base is handwash only. Microwave safe: No