beibijioExpandable Extra Large Travel Oxford Duffel Bag with 6 Spinner Wheels Waterproof Lightweight 39" Traveling Foldable Suitcase, Black Travel Soft Weekend Bag

Appears surprisingly robust for the lighweight material its made from. The wheels roll reasonably well too providing you dont't go too fast and the case isa not over loaded. The real selling point for this travel bag though is its flexibility. The fact that it can expand and contract depending on the contents. Means I can go away with it full at one size, then return home with more stuff than I went away with but still with just the one bag. For the money its a good value option.