Rain Boots ★★★

Taken all the way down to base materials, one Rain Boots is 2 crafting steps deep and needs 2 intermediates — Ground Sloth Leather ×2 and Sewing Thread ×1 — which resolve to 4 distinct raw materials totalling 10 units, plus 32 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 14 of those crystals go into the final step; the other 18 are burned by the intermediates, so the real crystal cost is 14 Wind Crystal, 7 Earth Crystal, 7 Lightning Crystal and 2 other kinds.

The chain crosses two disciplines — Leatherworker to Lv 70 and Weaver to Lv 60 — so no single class can finish it unaided.

1 of the 4 raw materials matches a gathering node, none of them timed; the other 3 come from vendors, drops or content this site does not track.

Of the intermediates, Ground Sloth Leather has the widest use: 44 recipes call for it, spanning four of the eight crafting classes.