User blog comment:Alartan/Swiftness or Mobility boots?/@comment-25254389-20150206005805/@comment-25254389-20150206033142

League of Legends consists mostly of combat. You kill minions, you kill champions, you kill monsters in the jungle. When youre out of combat is when youre moving towards combat.

Im out of combat when I am at recalling, at the shop, and before Ive reached the frontlines.

Boots of Mobility are to move back to the front more quickly and switch lanes. They stop working as soon as you do or take damage.