ThinkTank AirPort Roller Derby Trolley Bag

The bag has four sets of dual inline-skate style wheels that rotate, allowing the bag to easily roll sideways through aisles or through people in crowds. It also includes a cable and a lock for locking the zipper and securing the bag to a post. A rain cover is included to protect your gear in inclement weather.

The feet of a tripod can slide into a side pocket, while a strap holds the top of the tripod secure against the bag.
Inline-skate-style wheels are replaceable.
Two-position handle locks into place at either 39″ or 42″.
Interior zippered pockets for batteries, memory cards, and accessories.
A top zippered pocket can hold a wallet or a cell phone.
A rapid-access side pocket allows you to reach essential gear.
The back panel is reinforced for increased durability.