Amateur's Doublet Vest

Taken all the way down to base materials, one Amateur's Doublet Vest is 3 crafting steps deep and needs 4 intermediates — Copper Ingot ×1, Leather ×1, Undyed Hempen Cloth ×1 and 1 other — which resolve to 3 distinct raw materials totalling 8 units, plus 7 crystals.

That bill outweighs 5,254 of the 13,602 recipes tracked here and 610 of the 1,968 Weaver ones, and 337 recipes nest deeper.

Only 2 of those crystals go into the final step; the other 5 are burned by the intermediates, so the real crystal cost is 4 Lightning Shard, 2 Wind Shard and 1 Earth Shard.

The chain crosses three disciplines — Weaver to Lv 9, Goldsmith to Lv 1 and Leatherworker to Lv 1 — so no single class can finish it unaided.

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

Of the intermediates, Undyed Hempen Cloth has the widest use: 66 recipes call for it, spanning five of the eight crafting classes.