Founded by 25-year-old chemical engineering student Julie Sygiel, Dear Kates were designed to control those inevitable leaks that occur during a woman's period. But during the design process, Julie learned that those aren't the only leaks women experience — especially during pregnancy and in the postpartum years. She designed the underpinnings with a built-in lining made up of three breathable layers — two absorbent, stain-releasing, and wicking microfiber layers and a breathable, leak-resistant outer layer with a hydrophobic finish — that can hold up to three teaspoons of liquid. The soft, stretchy material keeps the undergarments comfortable, while the designs make them fashionable and even sexy. The line — which launches on Dec. 20 but is available for pre-order now — comes in styles ranging from high-waisted briefs and thongs to bodysuits, bikinis, and hipsters, all priced from $28-$38.