A blue dragonhide coif is Ranged headgear made out of two pieces of blue dragon leather at 69 Crafting, offering 140 crafting experience. It is currently the best ranged headgear for free to play players.
Blue dragonhide coifs were originally a degradable reward obtained as a reward from the Fist of Guthix minigame. It was changed in the 10 August2015 update. Old coifs that had been degraded still remained in the game, but could be converted to the tradable version.