ISO100® Clear RTD 100% Whey Protein Isolate Protein Drink That’s Ready When You Are In order to crush your goals, you must stay consistent. That goes for your training as well as nutrition— which is the real key to success no matter what your goals are. ISO100® Clear is a delicious protein drink that will optimize the vital nutritional component of your fitness program and help you stay on track with on-the-go convenience that supports muscle recovery and muscle growth goals.