For those parents who prefer natural fibers, Wickeez has created a bamboo diaper that combines the high tech fabric of Wickeez original diapers with the natural goodness of organically grown bamboo. Wickeez sandwiched a layer of Wickeez original fabric between two layers of organically grown bamboo terry. Each diaper includes a booster doubler that also sandwiches a layer of Wickeez fabric between two layers of bamboo. There are 6 layers of absorbency in each diaper. Wickeez Bamboo can be as trim as you like by removing the extra doubler, or can be used with any number of doublers for heavy wetting babes, overnight, long car rides, and naps. Do Wickeez Bamboo Require a Cover? Wickeez Bamboo diapers require a cover. You will need to use a cover in order to contain wetness. Wickeez recommends snug fitting wraps in order to achieve maximum leakage protection. However, you can use covers of any type with Wickeez Bamboo. How Do I Wash Wickeez Bamboo Diapers? Initially, you will want to wash Wickeez Bamboo two to three times on hot to remove the oils naturally present in the fibers. Your Wickeez Bamboo diapers will reach maximum absorbency after about 6 or so washings, but you don't need to do all six washings before the first use. WICKEEZ BAMBOO SIZES Size 0 (Newborn) were specifically designed to fit newborn babies. This size will fit most babies from 5-16 pounds. Size 1 (Infant) will fit most infants weighing 8-28 pounds. This diaper size may fit your child until potty training. Size 2 (Toddler) was designed for larger babies and toddlers. This size should fit most babies/toddlers who are 20-40 pounds.