Sometimes a removable Liquidation sticker is applied
Sometimes the piece is missing the paper store tag
Sometimes the piece was part of a set and some, or the rest, of the set is missing. The remaining piece(s) are still sellable.
Sometimes the piece was supposed to include a bonus item, such as a belt, and the belt is missing
Occasionally a piece has a stain which is usually dust / dirt from being tried on in the fitting room but on rare occasion the stain could be makeup or food. These stains are usually easily removable without the need for a washing machine.
Sometimes Costco Liquidations include items that are actually Store Returns. These pieces are usually returned to costco because costco does not have a fitting room so people cannot try on the merchandise in costco. This means that when the buyer brings the item home and tries it on they discover it doesn't fit.
Sometimes the piece looks worn or may actually be worn. We try to remove pieces with major signs of wear but it is not possible for us to catch 100%.
Sometimes the liquidation is applied with a staple to the garment. Simply taking your time and slowly sliding the staple out then stretching the material gently with your fingers is the solution. Obviously if you carelessly rip the staple out you are going to damage the garment.
On very rare occasion there is a rip along a seam or under an armpit that we didn't see. Again, these are usually very simple repairs with basic sewing knowledge. We try to remove all major damage that we see.
It is not possible for us to catch every imperfection. We sort over 10,000 items a week so we do not have time to analyze each piece. You should expect there could be imperfections we did not see.