I received this from Comme Ça du Mode. It's a novelty item. It doesn't have a gusset. The length of the longest part of the bottom is approximately 40cm. The length to the cut-out is approximately 22cm. Including the handles, it's approximately 58cm. The width of the handle straps is 2cm. It can be worn over the shoulder. Please note that these measurements are approximate, as they were taken by a non-professional. The material is unknown, but the handles appear to be nylon-like, and the main body has a smooth texture. The color is a dark navy. Please understand that this item has been stored at home.