Double-layer, breathable, high-performance, interlock knit. gDry Moisture Wicking keeps your skin dry. Scoopneck, racerback. Adjustable straps with easy to undo clasps at front for effortless nursing. Please note: Maternity styles cannot be returned in store. Please enjoy free returns by mail. XS: 32A/32B/32C/34A. S: 32D/34C/34B/36A. M: 34D/36C/36B/32DD. L: 36D/38B/38C/34DD. XL: 38D/36DD.