Flight Security Specialist Question: Suppose I pour shampoo and other liquids or gels into unmarked, travel size containers? Flight Security Specialist Interview QuestionAnswer: Yes, refillable travel-size containers are acceptable. Previous QuestionNext QuestionTell me are liquids and gels permitted in my checked baggage?Suppose I purchase beverages or other liquids/gels beyond the security checkpoint at the airport, may I bring them on the plane?