Definitely, brand umbrella can be a very effective marketing tool. They are practical, visible and are used in public spaces, which means that every time someone takes them, the brand receives free exposure. In addition, they are useful throughout the year in many cities, so they are not limited to a short season like other promotional gifts.
The interesting thing is that they generate a real perceived value for those who receive them. When people feel that the object is functional and of good quality, associate those positive attributes with the brand, which improves perception and trust towards the company. They can even become a conversation issue, either on the street, in public transport or among colleagues, which amplifies the effect of offline marketing.