Polyyarn has been nicknamed by fly tyers world wide the 'floating yarn'. It is so fibrous and so beautifully buggy, this easy to use fly tying material, indeed Dry Fly Polyyarn  is a must have fly tying material. Dry Fly Polyyarn is a bonded for of polyyarn which is a dubbing on a rope product from Semperfli. Its tight fibrous bonding makes it ideal on dry flies. Not only does it float naturally but its fibrous design traps air to help your fly float.

There are a few fly tying polyyarns on the market today from different companies. Indeed Semperfli makes two versions of polyyarn - the original Semperfli Polyyarn that comes on cards and is ideal for , most commonly used as parachute posts, and dubbing wings and Dry Fly Polyyarn Fiery Brown, is a spool based product which is intended for bodies of flies or to create detached bodies.