Essential equipment that would recommend include the following: Swim Fins for your feet - used for drills and sprints to develop technique and power Swim Paddles - used for drills and upper body work to develop skills and upper body strength Goggles - keeps the water out of your eyes allowing you to be more comfortable Swim Cap - helps keep a little bit of water out of your ears, and also helps your goggles stay on Towel - obviously for drying your body down when you are finished your session.