elvis...looking at that pic [ a style I`d love to wear but it`s too short to replicate with a system] I`d say the top is high-ish ...at a guess about 70%/75% which is ``Medium to heavy`` on the Toplace scale. The sides are slightly thinner..... there can be variances in densities from one system to the next as they are handmade and different ventilators can be a little heavier/lighter but usually not too noticeably so....what I mean is systems aren`t `standard`and can vary from one to another but are normally quite close to whatever you specify. As JRob said..if you post a pic here of your remaining hair we can give you more accurate advice on a matching-density to go for but as you have already ordered I think[?] I guess between 65-70% should work ok ...that would be the high side of `Medium`