Material: Genuine leather Thank you for viewing. I have listed a handmade smartphone shoulder bag. The smartphone in the image is an iPhone SE. Please use it as a size reference. I do not know the type of leather. The shoulder strap is a rope for mountaineering equipment. This is a handmade item, so there may be imperfections in the details. Please refrain from purchasing if you are sensitive to such issues. ★The last image shows three shoulder straps, but this is just for reference, and only one is for sale. The iPhone and ruler are not included. I am not a full-time seller on Mercari, so it may take some time to reply and ship. Thank you for your understanding. Type: Drawstring bag/pouch