Casual attire can be worn during the daytime hours in warmer weather. This apparel may include shorts, capris, tee shirts, polo shirts, khakis, jeans, summer dresses, lightweight jackets or sweaters, workout wear, and a bathing suit and cover-up. For cooler weather cruises, clothing should be layered, and include gloves and scarves. If you are a woman who plans to visit a religious site in Europe, you should cover your knees or shoulders. Comfortable footwear should be worn, especially shoes that features rubber soles or low or flat heels. Footwear that features wheels cannot be worn onboard ship.