Oops, sewing these isn't easy. Some of the stitching is a bit wonky. See the second two images for examples. Your sleepsack will probably vary. Some of these have been pre-stitched so when they are stretched you might hear those threads breaking. The actual stitching will hold, don't worry! Most are a bit shorter than our standard sizes. Heights are broken down so you can easily see what is available in a size that will fit properly. Please choose your size carefully, these are not eligible for return or exchange. Looking for top quality? Please visit the Darlex Sleepsack main page:https://www.winterfetish.com/products/darlex-sleepsack The locking version comes with two keys. Please note, the locking version has one locking pull and two regular pulls for access.