Snap-in-one

You are confronted with crazy new terms like: fitted nappies, pockets, AIOs, OSFA, pre-folds, all-in-twos, snap-in-ones, inserts, boosters, covers, wraps, liners and the list goes on, and that is without even choosing between the different brands.

Source: wiktionary

Snap-in-ones (SIOs) are slightly modified AIO nappies, where the inserts snap onto the waterproof layer. This means you can have the benefits of an AIO, but with the added advantage of being able to separate out the parts for faster drying like a pocket nappy.

Source: wiktionary

Preparation time: Snap-In-Ones^([sic]) require a bit more preparation time than other cloth diaper systems. The inserts need to be adjusted and fastened into the cover as needed.

Source: wiktionary