This bag-in-bag features a core material to prevent bending, and a lightweight, slim body. It won't take up much space. It has convenient features for use inside a bag, such as a magnetic closure and a transparent pocket. It's a convenient size for storing tickets, postcards, etc. The back of the main body has a large back pocket. 【Size】Envelope size 【Outer Dimensions】Width 245 x Height 145 x Thickness 20mm 【Material】PVC 【Other】Back pocket included There is some scuffing on the magnetic part. Please refrain from purchasing if you are concerned about this.