Taffeta is a lightweight, tightly woven fabric that is commonly used for tents. While it is not inherently windproof, taffeta can be treated with various finishes or coatings to enhance its windproof performance.

One common method of improving the windproof performance of taffeta fabric is to apply a durable water repellent finish. This finish creates a barrier on the surface of the fabric that prevents water from soaking in, while also helping to block wind. Another way to improve wind resistance is to use a thicker, denser weave of taffeta fabric.

However, it is important to note that no fabric is completely windproof, and the wind resistance of a tent ultimately depends on a combination of factors, including the quality of the tent's construction, its shape, and its ability to be pitched tautly. Additionally, wind speed and direction can also impact the performance of the tent, regardless of the fabric used.