Dress in layers so you can shed clothes as you warm up. Please dress comfortably and wear light cotton clothes. Shorts, T-shirts, supportive bras, and running shoes are recommended. Remember that everyone in the class with you will be pregnant or a new mom! There is no need to wear heavy or bulky clothes. For an aquatic class: please wear your regular pregnancy or postpartum swimsuit with an additional supportive bra/sports bra underneath. Aqua socks are recommended for additional traction and to help avoid slipping when getting out of the pool. Maternity swimsuit tip: Buy a bathing suit a couple of sizes too big.. with extra fabric in the tummy area. It's cheaper than buying a maternity suit and they often look better and offer better support than a maternity suit.