Elisha first received from Elijah the mantle of followership, discipleship, and service before he got the mantle for the double portion anointing.

The double portion mantle that many of us are seeking after is packaged by God as the call unto discipleship.

"So he [Elijah] departed thence, and found Elisha the son of Shaphat, who was plowing with twelve yoke of oxen before him, and he with the twelfth: and Elijah passed by him, and cast his mantle upon him. And he left the oxen, and ran after Elijah, and said, Let me, I pray thee, kiss my father and my mother, and then I will follow thee. And he said unto him, Go back again: for what have I done to thee?" 1 Kings 19:19, 20