The milestone cape (90) is a cape available to players with at least level 90 in all skills. It can be woven at a loom, found at the Falador farm, the Crafting Tutor in Taverley, or at the Cadarn Clan in Prifddinas. It requires nine balls of wool to weave and level 90 in all skills (excluding Invention) to make, giving 90 Crafting experience. This cape, along with all milestone capes, can be stored in a player-owned house cape rack. Along with all the other milestone capes, the cape has received an armour bonus since the Evolution of Combat update on 20 November 2012, but it is typically used to show off a player's total skill level. This cape has the fourth highest experience requirement to wear after the completionist cape, master quest cape, and max cape, requiring at least 139,004,632 total exp. It also requires a minimum total level of 2,341 and a minimum combat level of 126. Levels cannot be boosted to make any of the Milestone capes.

Making this cape in Prifddinas is a requirement for completing the elite Tirannwn task "Weave Come a Long Way".

Creation