Size 5 fits baby weight range 27-40 lbs. See size chart for more details. THE BEST COMFORT FIT FOR BABY - our diapers feature a flexible waistband and latex-free leg cuffs that provide an extra leakage barrier designed to stay in place throughout the entire night, even when baby moves around. SUPERNATURALLY EFFECTIVE - our unique Channel Technology and super-absorbent core can stand up to multiple wettings all night long. Combined with our fully breathable backsheet, baby's sensitive skin will stay dry and comfortable which means a better sleep for the whole family. THE BEST FOR OUR PLANET - made from 100% wind power and the first baby diapers certified with the Nordic Swan Ecolabel. SKIN SAFE MATERIALS - free of harmful chemicals and all known allergens and the fluff pulp is made TCF (totally chlorine-free).