Please note that the strap and sunglasses were used during the photoshoot and are not included in the transaction. Only the net bag portion will be sent. Outer size: approximately 15.5 x 10 cm. It stretches a little both vertically and horizontally. It's tightly woven, so it won't stretch significantly and lose its shape. I believe the material is cotton. I received this item without a label, so I don't know the details. It's made with yarn consisting of 14 thin threads. It's handmade, so I marked it as "Like New." It has not been used.