We recently fixed the leggings that come with the Add-on Store items Short Assassin's Armor (digital) and Short Assassin's Armor Pattern Pack (digital). The leggings that come with the short set should not have any coattails attached to them. If you bought either of these before the fix, you will need to go to your bank and hit Claim Rewards. You should get "Short Assassin's Leggings" or "Short Assassin's Leggings Pattern" x 6 in your bank. Please keep in mind that if you equip the old version of the leggings with the Short Chest piece, you will still see the coattails. Sorry for the confusion, everyone! Let me know if you have questions.