I put my in the washer gentle cycle and the dryer in warm. But then is on sale for $49 and i wore it for many many years so if it break then meh I can get a new one that's on sale for about the same price.
And yes mine was form Uniqlo as well.
Run an empty cycle in the washer to get rid of any detergent, buy some nickwax down wash and follow instructions, then put in dryer with some tennis balls, it will be as good as new.