1.Why do we Study Soilbags? 2. How to Reach the Earth Reinforcement by Soilbags (Solpack Method)? 3.Characteristics of Soilbags 4. Design Approaches of Solpack Method 5. Application Cases of the Solpack Method 6. Quality Control of Soilbags 7. Natural Vegetation Planted in Soilbags 8. Concluding Remarks. References