Contour diapers are like a prefold, but without the folding. They are already baby-shaped, so you simply lay the baby down on the contour diaper, fold the diaper up around the baby, and put a cover on top. You can use a Snappi or pins for extra security (I do) but it’s not strictly necessary with a contour. Contours are slightly easier to use than prefolds, since they don’t require any advance folding, and slightly more expensive than prefolds. A diaper service quality prefold will cost $1.50-$4 depending on size and quality, while a good contour diaper costs around $7. Contour diapers are actually my favorite diaper to sew myself. I like to experiment with different fabrics, maybe something in a cute print on the outside, and super soft cotton fleece or bamboo fabric on the inside to go against the baby’s skin. When choosing a contour diaper, I prefer ones made out of knit fabric, not woven, because they can stretch to fit baby in a way that woven fabric can’t.
Fitted diapers are one more step up from contours. They have elastic around the waist and legs, and some way of fastening the diaper on the baby, usually snaps or velcro. Fitted diapers, like prefolds and contours, work well with a wrap cover, but they also have some other perks. For one thing, if you are home with your baby and want to put them in just a fitted diaper with no cover, this is a good way to get more air circulation around baby’s bottom. The velcro/snaps and elastic make sure the diaper will stay put on an active toddler, even without a cover. Fitted diapers are also very popular with mama’s who like to use pull-on wool covers. The elastic around the legs helps contain EVERYTHING, keeping the wool cover cleaner longer, which is important because wool covers have to be hand-washed, so it’s good to keep them clean as long as possible.