The cons of using duffel bags include their size and unruliness. Duffel bags can be quite large and difficult to carry around for long periods of time. They can also be difficult to pack and unpack, particularly if you have a lot of belongings.

The primary disadvantages of using a duffle bag for travel in 2026 are poor organization and lack of structural protection. Because most duffles are essentially one large "open cavity," smaller items often shift and get "buried," making it difficult to find things quickly at security checkpoints or in a dark hotel room. Furthermore, soft-sided duffles offer almost zero impact protection for fragile items like laptops, cameras, or souvenirs; if the bag is stacked at the bottom of a luggage pile, the contents can easily be crushed. From a physical standpoint, carrying a heavy duffle over one shoulder for long periods can cause significant muscle strain compared to a backpack or a wheeled suitcase. Even "rolling duffles" often lack the 360-degree "spinner" wheels found on modern carry-ons, making them harder to maneuver through crowded airport terminals. Finally, their "bulky" and unstructured shape can sometimes lead gate agents to flag them for being oversized, even if they technically meet the dimensions.