Skybuilders' Longboots

Taken all the way down to base materials, one Skybuilders' Longboots is 3 crafting steps deep and needs 3 intermediates — Kudzu Cloth ×1, Kudzu Thread ×2 and Ruby Cotton Yarn ×1 — which resolve to 5 distinct raw materials totalling 26 units, plus 11 crystals.

That bill outweighs 9,543 of the 13,602 recipes tracked here and 1,336 of the 1,844 Leatherworker ones, and 337 recipes nest deeper.

Only 6 of those crystals go into the final step; the other 5 are burned by the intermediates, so the real crystal cost is 5 Lightning Crystal, 4 Earth Crystal and 2 Wind Crystal.

The chain crosses two disciplines — Leatherworker to Lv 70 and Weaver to Lv 64 — so no single class can finish it unaided.

All 5 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Ruby Cotton Yarn has the widest use: 91 recipes call for it, spanning six of the eight crafting classes.