Sylvan Chain

Sylvan Chain is an enchanted elven chain mail +2 which offers an armor class of 3. Like normal elven chain mail, it has -2 bonus to slashing attacks (AC 1) and +2 penalty to piercing attacks (AC5). It also has some penalties to Thieving Abilities. This item appears in Baldur's Gate II: Throne of Bhaal and Baldur's Gate II: Enhanced Edition. It's probably dropped by Illasera when she is killed.

In-game description
"This light but strong mail is of Sylvan elf construction, and therefore its elegance is only exceeded by its rarity. Normally granted only to especially brave elves, seldom is this armor be found outside of a wood elf tribe, and rarer still on someone not of elven lineage."