The O.N.E diaper is truly a one-of-a-kind all-in-one cloth diaper. All of its exclusive benefits are even listed right in its name, as O.N.E. stands for: Outlast closure, No prep, and Easy to use, making it easy to remember why the O.N.E. diaper is (or will become) your No. 1 all-in-one cloth diaper. The O.N.E diaper is the best all in one diaper (fits 10-35+ pounds) because it comes with everything parents need to cloth diaper a baby: enough absorbency to forget boosters and doublers (even overnight), two built-in closure options, and a heavy-duty construction that is built to last. The O.N.E. features a unique Outlast closure system that gives the user the ability to choose between Hook & Loop and Snap closures, and the ability to buy a replacement kit when your Hook & Loop wears out. O.N.E's absorbency comes from a hidden body layer PLUS our one-of-a-kind cotton, channeled soaker design that is trim yet absorbent.