Vaude aquarius 63vaudes aquarius backpack is a lightweight pack made of eco friendly bluesign fabrics it has 6l of cargo capacity with an extra 3l available if not using the included aquarius 20 hydration system its ideal for hard line riders out on less gear intensive rides and races optimum ventilationthe flas h shoulder strap adjustment has two pull loops to precisely adjust the length of the shoulder straps quickly and comfortably while the aeroflex suspension system keeps the ful