No such thing as free cooling vests here in NZ, in fact you'd be lucky if many people knew what they are. I went into our local MS Society once and they hadn't even heard of them.
I didn't qualify because I am not in the US but when I called MSAA they gave me the name of their supplier. Polar something or other.
Not a horrible price and very good customer service.
Corrie
I got mine through MSAA. It did not cost me anything. You do have to meet income requirements.
Oftentimes, in North America at least, MS societies have annual cooling vest give-aways or subsidies. Generally, someone with MS can avoid being out of pocket by that much as they really can be helpful with Uhthoff's phenomenon.