If you're looking for a happy medium, you're in luck with this Alexander Wang Duffel Bag in stock and waiting for you. You are bound to love this item. It's also worth considering this Thakoon Holdall. This product is extremely popular and, just as importantly, not too pricey.
If you're looking to purchase a designer item, then what you're looking for is this Proenza Schouler Carryall. It's more expensive but worth your money. While you're at it, also have a look at this Jil Sander Duffle Bag. Yes, this item is expensive, but it does not mean it's not worth it.