The Deep Sea Diver 40 oz tumbler is top rack dishwasher safe, in fact all are Ottle bottles are! But, dishwashing may cause gradual degradation of the printed design over time. To maintain the "like new" look and preserve the bottle’s function, we recommend handwashing.

Yes! The stainless steel 40 oz Deep Sea Diver can be used with both hot and cold drinks, thanks to our dual function sip and straw lid. We recommend using the sip function (not the straw function) with hot drinks.

Please use caution when using with hot drinks. Hot contents may cause pressure to build up within the tumbler and may leak or spray when opening. Do not fill with boiling liquid. Always use caution when drinking hot liquids to prevent burns.

We stand behind the quality and durability of our products and are committed to providing you with a hydration companion that meets your expectations. We offer a limited warranty against manufacturing defects for one year from the date of purchase. This warranty covers defects in materials and workmanship under normal use and care. View our product warranty page here.

At this time, we are only able to process and deliver orders within the United States. We are working on expanding our shipping options and hope to offer international delivery in the future!