I am so upset at this item. I needed bc I just had surgery, so I paid $8 next day shipping (even though I'm Prime member)  so I got it today and I could not even zip it up one inch high. I am not big, I am 5'9 tall and 145lbs.  I have a flat tummy. According to the chart I should fit a Small, so I order the Large and only my 10 year old (who is super thin 79lbs) was able to fit in to it, and was tight.  I first thought I would send it back and get an XXXL, untill I turned around and saw the big pouch in the butt.... who has butts this big??  Not me, or my family, friends or anyone I know.  The material seems thick and durable, but the design is just horrible.  I will now have to send it back, and pay for another shipping. Don't bother with this. (My 10 year on is the model in the pictures)