Link to the full video..https://youtu.be/ew1xO8XL-Xc
Downhill Flt or Oak Fly..
Hook, Fulling Mill All-Purpose Medium
Thread, Ash Coloured/ Grey Silk or Uni-Thread
Tag, Grey Thread
Rib, Trimmed Furnace Hen or Cock
Body, Orange Silk Floss
Wing, Woodcock
Hackle, Furnace Hen