When cloth diapering, you have different absorbency options to choose from, from the type of cloth diaper insert to the material used to make diaper inserts to their absorbency level. The most commonly used absorbency types are: cloth diaper inserts, doublers, soaker pads, boosters, and diaper liners. You can get these made out of cotton, organic cotton, bamboo, hemp, microfiber, and microfleece materials that range from normal absorbency levels to high if your baby flows like the Amazon River.