When was ripstop fabric first used?

Ripstop fabric was first developed during World War II, with its initial use in military applications around the 1940s. The fabric's unique weaving technique, which incorporates thicker threads at regular intervals, enhances its durability and resistance to tearing. This made it particularly useful for parachutes and other gear required by the military. Over time, ripstop fabric has become popular in various outdoor and recreational products.