Darkwood Core armor belonging to the Skirmisher warforged adds full Dexterity modifier plus proficiency bonus as this armor is bound to the warforged.

AC = 11 + your Dexterity modifier (add proficiency bonus if proficient with light armor).

Does not give disadvantage to stealth checks

Padded armor consists of quilted layers of cloth and batting.

Notes: Bonus: Armored Armor Class, Advantage: Stealth, Bonus: Armored Armor Class, Stealth Disadvantage