Large hanging boxing bag from the company Olympus Sport. These types of bags are the classic cylindrical bags that hang from the ceiling and are designed to withstand many hits. Training with such a bag aims to improve the user's technique. They are also suitable for training with kicks. However, they should be hung from a sufficiently sturdy point. The bag is delivered empty, so you can fill it with the material of your choice. Usually, bags are filled with the following materials: sand, water, air, and fabric. Each material has different properties and uses. Water is recommended for large bags as it provides the necessary weight and makes the hit quite realistic. Sand, perhaps the most common material in large bags, is recommended for users who want the bag to have the maximum possible weight. Fabric is also used in large bags and helps reduce the pressure exerted on the shoulders and joints each time you hit the bag. In some cases, you will find fabric and sand combined to take advantage of the benefits of both materials.