This is impressively flat. I got a sew on with leave out except I didn’t use my Burmese curly hair where I wouldn’t have to get it flat ironed. This is my first time getting my hair straightened. Over a year, if you see my hair journey, this is actually such a big risk. She did minimum leave out. Just found this hair. I had this since 2018. I checked my email. I paid $240 for three bundles of 22 inch hair. I do run. So what I’m going to do is test out how I can maintain my leave out. Put this around my head and put this silk around. It’s going to be hot. I put this scarf on top. For any other tips, let me know. We will see. After running and playing tennis this morning outside, let’s see what my leave out did. So you’re not supposed to take it off until your hair is completely dry. Oh my gosh. I see waves. Oh no. Dang it. I can’t stop working out. I did a little braid but my tinnitus is cute.