By them after the first class! Check for a deal at the shop where your doing the training! It seems rude to me to go buy MF&S at a competitors shop and then show up for training! Also you might get a discount or at least find out from the instructor what they like..... The next item to by is a custom Wetsuit or a good Drysuit! You can rent the rest! If your cold you will not dive and the training is a waste of time and money! If your comfortable and warm you will dive year around! It is the best investment you will ever buy!