UGGWomen's Pom Pom Fleece Lined Crew Sock

Long time owners, did these wear out quickly? (Not worried about poms falling off; but on other retailer sites ppl complained about holes forming!)

How do they come packaged? In an UGGS box or plastic just to differentiate from being a fake?

I wear size 11W. Is there a size I can wear?

Does the sock in the color nightfall have grippers on the bottom?