Explosion-Resistant Undershirt
Accessory4★Special fibers make this undergarment tough without adding weight, and explosions do no damage while it is worn.
Wearing it also carries the effect Defuser Explosive Spore, which matters more than the raw numbers in the biomes that punish you for the wrong outfit.
This is where the crafting chain ends — nothing downstream consumes it, so a stockpile earns you nothing.
Details
It does not stack, so every spare copy costs an inventory slot. At 120,000 gold it is worth real money to a merchant.
Explosion-Resistant Undershirt Crafting Recipe
Crafting it takes 60 materials across 2 types, and the bottleneck is almost always the 50× requirement — line that up first and the rest follows.
Where to Find Explosion-Resistant Undershirt
Explosion-Resistant Undershirt is not something you find lying around — you craft it, and the recipe is below.
Neither material can be bought. Explosion-Resistant Fiber has exactly one source — the level 70 field-boss Silvance in the World Tree, which pays 5 to 10 per clear, so two runs always cover the 10 the recipe asks for and wild Silvance give none of it. The 50 Mythical Wood is the longer half: recycling Ancient Relics returns it by grade, 1-3 from a Decayed relic up to 9-11 from a Glistening one, and it turns up as a field drop around the World Tree roughly one time in five. Bank the wood while you are still levelling and the undershirt is a same-session craft the moment the research opens.
Using Explosion-Resistant Undershirt Well
Nothing about this one is luck-based: the recipe is plain Technology tree research that opens at level 76 and costs 5 ordinary Technology points, not Ancient ones. There is no schematic to hunt for, so the only gate is your own level — bank the points as you climb and the recipe is waiting the moment you hit 76.
Alternatives and Upgrades
Other accessorys at a similar tier, for when you want to weigh this against the rest of its class: