Rumble Boxing San Ramon on Instagram: "Rumble Boxing is a 45 minute group fitness class that blends boxing-inspired cardio and strength training. NO EXPERIENCE NEEDED. Here’s what to expect! Half the class is boxing: you’ll learn boxing drills (jab, cross, hook, uppercut) on a water-filled bag. The other half is strength training: squats, presses, and core work using dumbbells and your own body weight. You will rotate between the two stations for a full-body workout! The link is in our bio to tr