@Carrie- the gory details…it winds up being 3. Nursing bra, plus two sports bras over it. Nothing moves!

I was just planning on asking this same question! What to do about the boobs!? I know another mom runner (she has had 6 breastfed babies) who wears bras that cost around $100 to get the support she needs for her F cups. Some women wear two sports bras. I imagine I would have to if I didn’t want to put an eye out while running!

Twin Mom: I am breastfeeding. Like you, I’m 5’5 and around 125, but I only have one baby, so that may be a key difference! But I have a few things I’ve found helpful: feed the baby (babies) right before you go. I fed on one side and pumped on the other for the first few months, but since you have two, you wouldn’t have that issue. I also realized, even before pregnancy, that I was never going to find a running bra, no matter how well-constructed, that would really work for large breasts and for miles of running. But wearing 2 — even 2 cheap ones — seems to work well. Right now I wear 3: a nursing bra, then two sports bras over that. So far, so good! Hope that helps. Congrats on the twins!