Gunny sack

A gunny sack, also known as a gunny shoe, burlap sack, hessian sack or tow sack, is a large sack, traditionally made of burlap (Hessian fabric) formed from jute, hemp, sisal, or other natural fibres, usually in the crude spun form of tow. Modern-day versions of these sacks are often made from synthetic fabrics such as polypropylene.

The word gunny, meaning coarse fabric, is of Indo-Aryan origin. Reusable gunny sacks, typically holding about 50 kg, were traditionally used, and continue to be to some extent, for transporting grain, potatoes and other agricultural products. In Australia, these sacks, made of Indian jute, were known traditionally as "hessian sacks", "hessian bags" or "sugar bags."

Gunny sacks are sometimes used as sandbags for erosion control, especially in emergencies. Up until the latter part of the twentieth century, when they became less common, the sacks were one of the primary tools for fighting grass fires in rural areas, used while soaked with water when available. Gunny sacks are also popular in the traditional children's game of sack racing.

Size
A gunny sack holds approximately 50 kg of potatoes, and measures 45 in by 34 in. Although gunny sacks are no longer used to carry them, the common measurement unit of potatoes is still the "sack" among farmers in Idaho.