sailcloth

A heavy cotton canvas or strong synthetic fabric used for making sails or tents.

A lightweight cotton canvas used especially for clothing and upholstery.

Hemp or cotton canvas or duck, used in making sails for ships, etc.

Duck or canvas used in making sails.

A strong, durable fabric suitable for making sails for ships or boats.

a strong fabric (such as cotton canvas) used for making sails and tents