NWT Esembly Size 1 (7-17 lbs) Inner cloth diaper. From Esembly website: A soft, trim-fitting and absorbent cloth diaper Inner. Pair this organic cotton fitted diaper with our waterproof Outer to make a truly blowout-proof diaper. This diaper system works great for our little one. We just ended up with an extra unneeded inner diaper. Never used, never washed.