The main objective is being relaxed and comfortable while you're staying at a spa hotel, so loose-fitting, casual clothing is the choice of attire for most guests. While it's likely you'll spend a good deal of your time wearing little more than a fluffy robe, these are usually supplied to guests on arrival. If you plan to use the fitness facilities, pack your sportswear and trainers. Hoping to loosen those muscles in the pool or sauna? Don't forget to pack your bathing suit. In addition to toiletries and other personal belongings, bring some extra clothes too. It's always great to have a fresh, clean outfit to put on after a massage or body treatment.