This product is quite new because absorbent core is made of 2 nonwovens wrapped around a mix of SAP. SAP is kept in position witout use of any fluff but only with a special glue. This system allow to place SAP only where it is needed (and you will see there is no SAP in the back) and of course to save a lot of fluff.
In a size 5 in US you will find about 14g of SAP (and positioning glue). In this way the same absorbency of previous product version is guaranteed.
As we have stated at the beginning it is not completely true it is fluffless because the acqusition layer is still made of fluff. As the previos product there is a patch consisting of a web (usually a resin bonded material) and a layer of curly fibers without any SAP. This is a design very peculiar and it is needed to give to consumers the feeling of a (altough very little) thickness. A completely fluffless core with a very thin product could cause some complaints from the market. Anyhow this design allow to keep the same structure of previous product in contact with the skin of babies. It should reduce possibilities to generate negatives (eg rushes) because hte product is more or less the same.
Here you will find some drawings showing the Pampers Cruiser structure obtained throug a reverse engineering approach.
More detailed info are available.