Say Hello to a Comfy Bra and Goodbye to Underwire! The soft cotton and stretch frame help assist in cupping around breast. Visual graphics on frame to help baby focus and latch! Sleep bras can cover a wide range of cup sizes. Please see below for the size chart. ___*When in doubt or in between sizing sets, size up.* _______If still pregnant, size up for maternity sizing. The below sizing chart is based on postpartum sizing. _____Visy Bra Series 3 Sizing: S: 30-34A, 30-34B, 30-32C, 30D M: 36B, 34C, 32-34D, 32DD L: 38B, 36-38C, 36D, 34DD, 32-34 DDD XL: 40C, 38-40D, 36-38DD, 36 DDD Additional sizing available in LYB Set (2XL, 3XL). Check our website for more details. -------------Happy Feedings! NurseMeMama Team