Archaeoskin Boots

Taken all the way down to base materials, one Archaeoskin Boots is 2 crafting steps deep and needs 3 intermediates — Archaeornis Leather ×1, Rainbow Thread ×1 and Rubber ×1 — which resolve to 5 distinct raw materials totalling 10 units, plus 10 crystals.

That bill outweighs 5,754 of the 13,602 recipes tracked here and 691 of the 1,844 Leatherworker ones, and 4,464 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 5 are burned by the intermediates, so the real crystal cost is 6 Earth Crystal, 2 Wind Crystal, 1 Lightning Crystal and 1 other kind.

The chain crosses three disciplines — Leatherworker to Lv 51, Weaver to Lv 51 and Alchemist to Lv 7 — so no single class can finish it unaided.

4 of the 5 raw materials come out of the ground, and one of them is time-gated: Coerthan Tea Leaves (0:00, 8:00, 10:00, 12:00, 20:00, 22:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Rubber has the widest use: 191 recipes call for it, spanning four of the eight crafting classes.