Simpson Drag Chutes hang on some of fastest and quickest cars on the planet and they depend on Simpson chutes to get them to a halt, safe and sound. Over the years, Simpson has taken their experience and expertise in the art of parachute manufacturing and developed a couple variations of their crossform design chutes. The different sizes available are intended for a class of cars traveling at certain speeds. Simpson's Air Boss handmade 8-foot canopy drag parachutes deliver enough stopping power for most drag cars that reach up to 200 mph.