How are these scooter print footed pajamas supposed to fit? Loose enough that you can curl up in a ball and have them still not feel tight. All of our Italian scooter print footie pajamas are made extra roomy so you don't have to order a larger size just to get more room in the waist.Drop seat? (Yes, the butt-flap!) Yes! These scooter print footie pajamas feature our popular drop seat back which means you can stay warm and cozy when nature calls. This means that you won't have to take your scooter footies completely off when using the restroom.Concerning our sizing chart: We have tried these Italian scooter footed pajamas on dozens of different sized people. The recommendations you see on our charts are based on what they said they felt most comfy in both standing and curled up!About our polar fleece: Our polar fleece fabric is both soft and lightweight without being too warm which means it is perfect for Fall, Winter, and Spring. Expect that these scooter print pajamas will shrink slightly from about half an inch to 1 inch depending on how you wash them.Washing instructions: We recommend that you wash your fleece scooter print footed pajamas with similar colors in cold water.About the full body zipper: Our scooter print footies feature a full body zipper that runs from your collar to just below your waist which means it's very easy to get in and out of them.About the kangaroo pockets: One of the most popular features on our Italian scooter footies are the kangaroo pockets which can either keep your hands nice and toasty or keep your cell phone or keys handy.About the soles: Our scooter print footed pajamas have little red "friction-dots" on the soles of the feet.