If you're budget-restricted, this Mi-pac Duffel Bag will fit the bill. It's a fail-safe choice, while not very expensive. In this price range, you can also look at this Fiorelli Holdall. It's also a popular item and won't break the bank. Or you can opt for this Asos Duffel Bag. This item has all the potential to become a powerful player in your wardrobe.