Demon slayer boots

The Demon slayer boots were released on 28 January 2013. It is dropped by a Demon boss, which will show up at a number of places every full hour. There will be a message in your chatbox describing the location of the Demon Flash Mob when you are level 120 combat or higher. This message can be toggled off at the Doomsayer in Lumbridge.

Although it's level 60 equipment, it has an armour rating in between that of a Ranger boots (21, at level 40) and a Spined boots (35, at level 50), while the Lifepoints boost is just a bit lower than the Armadyl boots (210, at level 70).