Looking for something fairly specific with two criteria in mind:

Metal weights, because sand seems like a bad idea. Once I start sweating it seems like sweat-stained sand will stink. Also I don't know how you'd wash sand weights, especially if you get a leak somewhere.

$100 or less. All of the ones I looked at on Amazon are like, $150 or more, and the only website I thought of that sells gear (mixedmartialarts.com) doesn't have anything over 15 pounds. Hayabusa and Bad Boy don't sell weighted vests before anyone suggests either of those places.

They look like this just in case people don't know what I'm talking about

via amazon.com