Both the front and lining fabrics use DeCollection's oxford cloth, with interfacing applied to the lining. The pocket lining is sheeting. The shoulder strap is a leather-like cord. Size (approx.) Height: 18cm, Width: 13cm Shoulder strap: Width: 0.7cm, Length: 120cm Please understand that this is a handmade item, so there may be slight imperfections such as misalignment or distortion.