Unique stitch combination that works up quickly to create a dense, warm winter hat. I continue to be AMAZED At your creative crochet talent, Zahra. I am humbled to have the opportunity to view your extensive list of hat video tutorials which are so clearly explained and demonstrated. I barely get one completed before I make plans to start the next. Because of your generous sharing, I have crocheted numerous hats to donate to the homeless, to cancer patients, to children's hospitals and gained an enormous amount of crochet experience that I never dreamed of aquiring. All I want to do now is crochet. I have to force myself to take care of daily chores. Thank you Zahra.