This is a superb Sedge Dry Fly tied by Thomas Roos. It is well known in Scandinavia under the Dyret name.
This model is a fantastic version of sedge flies tied in pure Swedish style. The fly is tied in this unique way to float well on super fast flowing rivers from Nord Scandinavia.
*Hooks need to be strong – Ahrex is a good option or Hanak as well
*Hackle should be from high quality roosters
*Poly – which is used for body ( tail and heads ) is useful and help flies to float and to provide a good water print
*Dubbing – Roos used Troutline Ecstasy Dubbing ( it seems that suits very well for these flies ) for making bodies