This container is a lifesaver on MY trips! Based on my observations, it is leak-proof, lightweight, and the perfect size for my conditioner .It fits perfectly in my toiletry bag and doesn't take up too much space. The flip-top lid is easy to open and close, and it has never spilled. The only con is that it only holds a small amount of product, so I need to refill it often. Overall, a must-have for travel!See full review