Kamik tall white insulated winter duck boots

Kamik brand with Thinsulate. 12.5” tall. They fit a bit small for a 7 but 6.5 would have plenty of room for thick socks! I don’t know what they are rated for warmth but with average walking through the snow they were warm enough. Unfortunately, the plastic covering the white nylon has yellowed, even and broken away a bit on one boot (see pics). If I was going to keep wearing them, I would actually peel off all the plastic and reveal the white like new underneath! Or try to stick it back down and no one will notice. But I’ll leave that to you to decide!