The primary goal is being relaxed and comfortable when you're at a spa hotel, so loose, non-restrictive clothing is encouraged. While it's likely you'll spend a lot of time in slippers and a bathrobe, these are usually supplied to guests on arrival. If you're eager to make the most of the resort's fitness facilities, pack your sports gear and shoes. Hoping to ease some tension in the pool or sauna? Be sure to pack your swimming suit. In addition to toiletries and other essentials, bring a change of clothes with you too. It's always nice to have a fresh outfit to slip into after a massage or body treatment.