looks like a skirt.
Image could be reversed.
Back to the old "define a kilt" ....No please!
You have no choice of belt.
A different closure would be a better idea, with belt loops.
Then you would have a choice. I prefer no belt when wearing a backpack. Even that little plastic buckle can create discomfort when you use a backpack hip belt properly.
I would like to see a light-weight nylon muted tartan fabric though. It would make a good kilt for transitioning from wet kayak gear or around camp. it could stow in my pack better. So i do like the fabric choice though. But the design is not for me.