[monkeytoesmama]

nak
i haven't used wwb, but used this sort of system with heavenly hineys. yes, pocket (sleeve) is two pieces of fleece sewn together. you stuff with insert and snap (don't really need to snap them, just laying in works fine and is less work) them into cover. when insert wet take out and replace with new sleeve/insert. i use inserts like for pocket diapers but can use prefolds, too. i think wwb gives you choice of what sleeve is made of - fleece, suedecloth.