The POLAR SEAL heated tops are washable by hand at 30-60C. Of course one needs to remove the power bank before putting the zip top into the water. The USB connector comes with a rubber cap, protecting the connector from water. We will provide a washing instruction in the user manual.
PolarSeal works with a power bank that you can buy from most electronics stores or on-line. You should use a standard USB power bank, with USB-A connector, output 5V, 2A, providing at least 5.000 mAh power. (10.000 mAh is best)
The pocket size is big enough to hold a power bank of size of an Iphone 6 plus.
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