The name of this product truly fits.  I needed a string backpack for carrying things while I was on crutches. The little one I had previously broke while carrying groceries.  This one is quite large; it can carry a half gallon of milk, whole pineapple and a 3lb bag of clementines at once. It is also surprisingly strong; I was able to carry a 25lb package in it for a short distance. It has not broken and the seams still look good.