The vaude wizard daysack is a fantastic bag with plenty of versatile storage space and an incredibly comfortable fully adjustable mesh back system and variable back air gap which makes this an ideal bag for cycling walking hiking travelling and everyday use this backpack comes under the daysack range but its features reminds us more of a larger trekking rucksack it has a fantastic adjustable back and shoulder system so that you can easily lengthen or shorten the shoulder straps from the base of