The foam is a very floating synthetic...

Foam bodies

The foam is a very floating synthetic material and is very effective when fishing in fast waters because in addition to keeping the artificial fly afloat, with its bright colors you will never lose sight of it.

These already shaped elements are very useful because they will save you a lot of time during fly tying. With them you can make imitations of terrestrial or extended bodies. The best time to fish with this kind of artificial flies is certainly the summer, where insects such as caterpillars, grasshoppers etc... often fall into the water, becoming a prey for our salmonid friends.