Swimsuit - a team suit is not required, but you will need a swimsuit appropriate for swimming laps, not for playing. If you are new to participating on a swim team, check out the Team Store.
Cap - a swim cap is not required, but is very beneficial to swimmers with medium or long hair. It is very difficult to swim with hair over your eyes and mouth :) Swim caps can be purchased at Dicks, Amazon, Swim Outlet, etc..
We sell a team cap for $5.
Goggles - you will want swim goggles, not a mask, to protect your eyes. Goggles can be purchased at Dicks, Amazon, Swim Outlet (see Team Store below), and even Walmart in the summer.