There are lots of bootie manufacturer's.
I like these, because they feel like a second skin. They are light, and will be perfectly warm for winter, at 2.75-3mm of rubber.
Internal split toe plus the strapping combine to create a "second skin" fitting....
Fitting guide for booties in general... try a 1/2 size or 1 size down from you normal shoe size. Big Toe should touch the end of the bootie, as opposed to "not touching the end" of a regular walking shoe.
RRP is AUD$75.99.
They also have thinner "sock" style booties, which look like they would be a sloppy fit, and thicker soled options which give you less feedback from your boards..
(I have a regular sized and shaped foot - I'm normally a Size 10 shoe, and their Size 10 Bootie is the correct size for me, toe touching the end, so you might not need to "go 1 size down", which was the old school of thought for booties.).
The wording inside the bootie includes;
Made in Thailand.
Size 10
Euro 43/44
UK 9
No mention of anti-bacterial treatment. High ankle booties are hard to dry and get very stinky.
I've never had a problem with stink foot, or stink bootie. But I hear it is common enough. Surely the anti-bacteria stuff would wear off during the first winter anyway? Probably worth investigating a product to reduce that problem if you have it.
I suspect direct sunlight would help, but you would need to turn them inside out. Miniature UV Lamp ? 
How does the internal split toe (which I've never tried before) compare to regular split toe?
Having moved from WA to Vic, I have new interest in getting some decent winter protection!
It's probably just more cost effective to manufacture an internal split toe. It is just a semi stiff wetsuit wall, but it helps lock your toes into position, and obviously resists your foot from rolling sideways inside the bootie. Plus the strapping helps that also.
Simondo where abouts did you buy them from. Would mind checking them out for myself
