Aplix

This is a type of closure for a diaper.  It is a hoop and loop fastener. 

Cloth Diaper

Cloth diapers are made of fabric and are washable and reusable.  They are a healthy, natural, environmentally friendly alternative to disposable diapers. 

Contoured Diaper

Contoured diapers are similar to prefolds except they are shaped and do not require folding.  The wings require Snappi or diaper pins.  This type of cloth diaper also requires a diaper cover at all times.  This is not a good option for overnight diapering, but is great for the day. 

Chinese Prefold Diaper

If you're trying to save money this is the cloth diaper for you.  It is a flat, square diaper that require folding.  The diaper is divided into three sections. The outer section is thinner and the middle section is thicker for absorption.  It comes in different sizes and thicknesses.  They do require prewashing to make them soft and absorbent. They come in bleached (white) and unbleached.  This type of diaper require a diaper cover. 

Diaper Cover

Diaper covers are used for prefolds, contours, and fitted diapers.  They come in different styles and fabrics. 

Fitted Diaper

Fitted diapers must be worn with a diaper cover.  They have elastic at the legs and waist.  They don't require diaper pins or Snappi's since they have some kind of closure on them. 

Flat Diaper

These are the cloth diapers that I was cloth diapered in when I was a baby.  They are still popular today because they are considered a one size diaper.  The sizes are 27 or 30 inches squares and can be folded many different ways to accommodate your child as they grow.  Flat diaper are made of flannel, birdseye cotton, gauze, or hemp. 

Nylon Pants

These are the more traditional diapers from the past, but are now made of breathable nylon.  Dappi is an example of a brand that make nylon pants. 

One Size Diaper

This diaper allows you to diaper from newborn to toddler.  Depending on the brand they go from newborn to about 35 pounds.  Snaps are placed to allow for the diaper to be folded over when the baby is first born.

Pocket Diaper

Pocket diapers are very popular since you can adjust the absorbency of the diaper.  This diapering system doesn't require a diaper cover.  They have a waterproof fabric on the outside and an absorbent, soft fabric on the inside.  These two layers are sewn together to form a pocket that an insert(s) can be put into.   Many diaper brands make insert (also known as a doubler) from either cotton or hemp.  There are also flushable liner too.  Many people stuff the pocket with prefolds too.  This is a popular overnight diapering system since you can add multiple inserts or doublers.  Fuzzi Bunz, SwaddleBees, and Happy Heinys are example of pocket diapers. 

Plastic Pants

This is the diapering system of the past.  Do not use plastic pants as they do not allow for air circulation which is a breeding ground for yeast and bacteria. 

Wool Soaker

Wool soakers are made mainly of wool.  Wool is a naturally water resistant and anti-bacterial, so it's perfect as a diaper cover.  Imse Vimse, Swaddlebees, and Sckoon all make excellent wool diaper covers.