XL Inserts fit BIGGER Best Bottom shells and Heavy Wetter AIOs with the rise all the way open. Both Bamboo inserts and Stay Dry Bamboo inserts are longer and have an additional two layers of bamboo for extra absorbency. The Stay Dry insert is longer and has one additional layer of microfiber for added absorbency.
Before first use the shells, stay dry inserts, and overnight inserts only need to be washed one time. Hemp/Organic Cotton inserts need to be washed 4-6 times to reach full absorbency. Please note that hemp inserts will shrink slightly during first washings making them consistent with the other insert sizing.
We recommend washing every 2-3 days. We have found that the Best Bottom system washes beautifully as it takes up less space in your washing machine allowing more room for agitation getting your diapers super clean.