DESCRIPTION Good Housekeeping 2021 Parenting Awards winner. Please measure yourself and choose the size you prefer. A larger size will provide a slightly looser band fit. A smaller size will be slightly tighter. You decide what feels best. For 34DD/DDD, it's typically a size M buckling up on the middle hook.  One of our best sellers Chloé 3 Running Nursing Sports Bra now comes back with a new version —— Chloé 4! This time we added the hands-free pumping function so that you'll never need to switch bras for nursing, pumping during a workout, or lounging around the house. Same high coverage, gorgeous strappy back details, and 4-row adjustable back clasps, it is supportive yet comfortable, truly everything that a new mom ever needs!