Did UGG ever make the ultra tall boots with a pale sole?

So I want to buy some chestnut ultra tall boots on ebay and they appear to be authentic but I have never seen this boot with a sole that is lighter/the same color as the chestnut sheepskin; they are usually darker. I actually prefer this lighter color on the heel, but I've never seen this before and I was wondering if they were authentic. Has anyone ever had uggs with the lighter bottom color before? Thanks!