There are different Sublimation Cup Care Instructions it depends on the manufacturer as to whether or not you hand wash, or wash in the dishwasher. However, regardless I still suggest hand washing them always.

Hand wash ONLY

NOT dishwasher or microwave safe

AVOID extreme heat

DO NOT freeze, soak or drop.

The Tumbler Care Instructions are available in two forms, one for dishwasher safe and one for hand-wash only.