Nylon waders are durable, and inexpensive. They can be constructed to be lightweight or heavy-duty. For the angler on a tight budget or for anglers that just can?t seem to justify the price of a breathable wader, nylon waders fit the bill. As mentioned previously, nylon waders are non-breathable. If it is hot outside, or you are engaging in activity, any perspiration that?s produced by your body is going to stay inside of the wader.