Sailcloth

Okay kiddo, do you know what a sail is? It's that big cloth thing on boats that helps them move. Sailcloth is the material that sails are made of.

Sailcloth is a special type of fabric that needs to be strong, durable, and lightweight. This is because it has to withstand strong winds and resist wear and tear from the harsh conditions on the sea.

There are different types of sailcloth that vary in strength, weight, and flexibility. Some popular materials used to make sailcloth include polyester, nylon, and Dacron. Sailmakers (people who make sails) use machines to sew pieces of sailcloth together to create a sail.

So, sailcloth is basically the special fabric that makes sails. It's strong and light, and comes in different types depending on the boat's needs.