Vaude wizard 30 plus 4 backpack versatile all round talent large volume hiking backpack with technical features in a stylish daypack look with an aeroflex suspensions system for a light and comfortable fit the easy adjust system regulates the tension in the mesh back so you can adjust it for more ventilation or a more body hugging fit the moisture permeable shoulder straps can be easily adjusted with the user friendly flash and optimized for different back lengths expandable for an ex