Kissaluvs diapers are known for quality fabric and terrific fit. Fabrics are custom-made in the USA, made of a wonderfully soft, absorbent, and durable cotton fleece. Snug fit, sturdy snaps and textured fabric that can deal with the runniest poop. Stretchy elastic and fabrics for a snug fit without binding. Size 0-newborn fits approx. 5-15 lbs., M/L fits 15-40 lbw. Note: The new M/L Kissa's feature a unique fold down rise that allows you to make the diaper as small as needed to fit smaller babies. No extra rows of snaps, no multiple sizes and super easy to use.