Each winter I have to remove my sterling silver earrings to prevent frostbites due to our arctic temperatures. And every 2 weeks I had to re-pierce my ear holes which would close up very fast. I ordered a first set of the clear crystal stud earrings which are identical to these and was impressed. They are so comfortable and well fitting after shortening the stud a little bit. They're somewhat flexible but not too much and the stoppers are very tight and secure. Have not lost any yet and doubt I will. Sleeping in them is comfortable and even minus 50F don't bother - break- them. I have literally janked them off my ear before showers when I was in a hurry and not caused any damage. Those earrings are imho durable and well worth the money. Like them so much that I ordered two of the colored version, too.