Do you have to use weights when doing Insanity Max 30 workouts?

No, weights are not necessary for Insanity Max 30 workouts. The program is designed by fitness trainer Shaun T and focuses on high-intensity interval training (HIIT) that relies mainly on bodyweight exercises to promote strength, endurance, and cardiovascular fitness. The workouts include a mix of plyometrics, cardio drills, strength and stability moves, all performed at a very high intensity with minimal rest in between. The idea behind Insanity Max 30 is to push to one's max effort in short bursts for maximum results without the need for additional equipment such as weights.