I've been through a few pairs in my time, I tend to stick with either Gray Nicolls or Kookaburra, as I find them a decent fit.
The problem with a lot of pads is the inconsistency in sizing and the length of the straps, on my current Kook Rogue 850 the straps were so long the velcro didn't meet up when I tightened them, so I had to take 15cm off by folding them over and using superglue to hold them.
Personally I would try a few pairs on, if you are short (below 1m70cm/5ft8") then a Small Mens would do the job, but given the variances in sizing and straps etc. it's always best to try a few pairs on.