What material is commonly used for parachute canopies?

Nylon is commonly used for parachute canopies due to its exceptional strength-to-weight ratio, durability, and resistance to abrasion. This synthetic material is lightweight, allowing parachutes to deploy effectively while providing the necessary structural integrity to withstand the forces experienced during descent. Additionally, nylon has good tensile strength and is resistant to mildew and deterioration caused by exposure to moisture, making it an ideal choice for parachuting applications. Other materials, such as polyester, while also used in some contexts, do not offer the same level of advantages as nylon when it comes to the specific needs of parachute design and performance.