Don't worry about getting Milo wet. Milo is waterproof and dust proof with an IP67 rating, which means it can be submerged in up to 1 meter (3 ft) of water for half an hour, and is sealed and safe from dust and sand. So you can safely bring Milo along while kite surfing or on a dusty road bike adventure. We recommend always rinsing Milo after it has been used in saltwater - that's good practice for all devices. To keep the salt water out, we even include a few rubber caps that are custom fitted for the USB-C port.