Cloth napkins that suit your laundry routine
Pick a size and fabric you can wash often, then buy enough for a realistic rotation.

Think beyond the folded display
A napkin spends most of a meal unfolded. Check whether the size feels useful on a lap and whether the fabric is comfortable in the hand. A small cocktail square and a full dinner napkin serve different purposes even when photographed with the same plate.
Open one if shopping in person. Look at the hem thickness and feel any embroidery. A heavily decorated corner can be attractive while leaving less plain cloth for use. For a household that eats together daily, simple construction may make laundering easier.
Read the fibre composition and care label. Cotton, linen and blends can all be made into napkins, but their appearance after washing will differ. Choose a finish you are willing to live with. If a softly creased napkin is acceptable, you need not commit to ironing every piece to match a catalogue image.
Buy for the wash cycle
Count the people at a normal meal, then consider when the next wash will happen. A single set can be inconvenient if it is still drying when needed again. A modest spare set is more useful than a large collection kept for occasions while the everyday pieces are constantly short.
Colours can help with sorting, but do not assume dark fabric hides every mark or that white automatically permits bleach. Follow the label for the exact item. Wash new strong colours separately as directed before combining them with pale table linen.
Keep food-marked napkins out of the clean stack. Treat spills according to the fabric and product instructions rather than applying a household mixture to every stain. Avoid letting a decorative napkin's care needs turn a simple meal into a complicated laundry task.
Use what fits the table
Napkin rings are optional. A folded rectangle beside the plate is enough, and a drawer divided by size can keep the pieces easy to find. If buying more later, match the dimensions and care routine before worrying about an exact shade.
When a piece becomes too worn for the table, repurpose it only for an appropriate use and keep it clearly separate from dining linen. Replacing a few tired napkins is easier when the original purchase did not depend on a large perfectly matched set.