Good stroke technique and productive kicking are the keys to being a successful triathlete at any level, and swim performance and drills are the primary way to make those improvements. However, improving your form through drills can be complimented by the use of swim aids such as fins, snorkels and paddles to accelerate the benefits of specific technique work. In this guide, I will review 7 of the most beneficial freestyle swim aids and how they can improve your swim form.