Thule's Crossover 40L Duffel Pack is a versatile bag that can be pretty much what you want it to be. This hybrid bag is equipped with breathable mesh backpack straps, duffel handles, flexible storage, and plenty of organizational options. And it can handle the rigors of travel from Denver to Dubai and Brooklyn to Budapest with tough aluminum hardware, water-resistant fabric, and raised rails that protect your gear. Large gusseted side pockets separate clean from dirty, and compression straps cinch down the bag for stabilization. The removable, lockable crush-proof compartment is genius, we use it to protect eyewear and electronics. There's even rear-panel access for quick retrieval of gear for travelers on the go.