Rocky & Ruby FAQs

What beverages can I use Rocky & Ruby for?

Anything! The same features that make Rocky & Ruby perfect for wine and cocktails can also bring out the best in any hot or cold beverages: coffee, kombucha, and all your curious concoctions.

Are Rocky & Ruby lids interchangeable?

Yes! Rocky & Ruby lids are interchangeable with each other. Feel free to mix and match colors!

Are Rocky/Ruby lids compatible with Carters?

No, Rocky & Ruby lids are not compatible with Carter products.

How long will Rocky & Ruby keep my drink cold and hot?

Rocky & Ruby will keep drinks cold for up to 12 hours and retain heat for 3 hours.

Are Rocky & Ruby cupholder compatible?

Rocky may fit some cupholders, while Ruby is not cupholder-compatible.

Are Rocky & Ruby leakproof?

No, however, Rocky & Ruby are spill-resistant.

How do I use the swivel pebble lid?

Press the lid into the tumbler until the rubber gasket seals it in place. Swipe the pebble right or left to open and close the sip-hole for splash-free sipping. The pebble can rotate 360° for maximum fidgetability.

How do I clean my Rocky or Ruby?

We recommend hand washing in order to extend the lifetime of your product. Both can be cleaned using soap and warm water. Do not use abrasive sponges such as steel wool. The gasket, pebble, and lid can be separated for thorough cleaning.

Are Rocky & Ruby microwave-safe?

Rocky & Ruby are not microwave-safe.

Are Rocky & Ruby BPA free?

Yes, all Fellow products including Rocky & Ruby are BPA free.