These are the bane of many sewerage systems around the world and are bad for the environment. These "hygiene" products are used for tasks such as wiping babies' bottoms and eye make-up removal. They often contain non-biodegradable plastics, which means they do not break down as toilet paper does. They can contain toxic chemicals, so do your research if using on baby or your own body.
See also baby wipe
Rather than buy wet wipes, use a flannel or soft cloth for cleaning, and wash it.
Make your own reusable wipes.