Does the PRO 2 bottle or tumbler fit in cupholders? June 16, 2025 15:49 Updated 21 oz Bottle: Yes, it is designed to fit in most standard car cupholders. 30 oz Tumbler: Yes, it has a narrow base designed to fit in most standard car cupholders. 32 oz Bottle: No, it has a wider base which may not fit in cupholders. Related articles Can I use carbonated or pulpy beverages? Are the lids interchangeable between sizes? How do the drink reminders work on the PRO 2? Do I need a premium membership to use the PRO 2? Is the PRO 2 bottle/tumbler dishwasher-safe?