While there isn't a strict dress code for visiting the Eiffel Tower in Las Vegas, it's advisable to dress comfortably and respectfully.   Wear casual, comfortable jeans, shorts, t-shirts, and sneakers.   If you are dining at the Eiffel Tower Restaurant, business casual attire, such as slacks, a collared shirt for men, and a nice dress or blouse for women, is suitable.   Comfortable footwear is especially important if you plan to explore the Las Vegas Strip afterward.