As its name implies "Monofilament Netting" is netting that is made from a single filament string. "Multifilament Netting" is netting that is made from a string composed of many tiny filaments. In the fishing industry “Nylon” netting generally refers to multifilament nylon netting while “Monofilament” generally refers to Nylon monofilament netting. There is also a multi-mono netting where two or more monofilament strings are slightly twisted together before being made into netting.
A tough decision for some fishermen is whether to use conventional multifilament nylon netting or monofilament nylon netting. Monofilament is also referred to, in the fishing industry, as Glass or Cat Gut netting. Each have some good features and each have some disadvantages. Multifilament nylon is more limp and will bag a fish a little easier than monofilament. This means a wider range of fish size in nets made of multifilament netting. Multifilament is harder to keep clean because sticks and cockleburs do hang in this type netting. Monofilament is not quite as strong as nylon, but in clear water, fish will hit the monofilament better because they can’t see it as well. Sticks and cockleburs will fall right out of monofilament netting just by shaking it. Since monofilament is a single strand, it is harder on your hands and more difficult to see when taking your fish out. To sum it all up, if you are fishing clear water, or having trouble with sticks and trash in your nets, a monofilament net will work better for you.
All netting we have at Nets & More (multifilament and monofilament) is nylon, unless it is specifically stated to not be nylon.