Yes, it is a requirement for any return that the item comes duly protected to avoid its damage during its return transportation. The returned products, either because they didn’t fit or the customer wasn’t convinced, are put back in stock. That’s why we are very demanding evaluating the returned items’ conditions.
The original box/bag is part of the product. Make sure it is safely packed in an extra shipping carton so that it doesn’t get damaged during transportation. The returned items must be in perfect condition. They must not have been used and they must contain all the elements (tags, packaging, etc.) included in the original shipping. Should this not be the case, it could be penalized with up to 100% of the value of the item.