The Staveley XL Mobility Scooter Backpack with Crutch Holders measures when not expanded 43cm High x 34cm Wide x 15cm Deep and the bag can expand by a further 10cm by simply unzipping the expandable section of the bag. Perfect for those unexpected shopping trips where you just need a bit extra room changing it from 22 litres standard to 36 litres once expanded, so yes this bag is HUGE!.
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