The Think Tank Mirrorless Mover 25i is a shoulder bag that can hold a mirrorless camera with two to four lenses and accessories. The main compartment has a zippered closure and two removable padded dividers for customizing the interior. One of the dividers has a slot in it for holding a phone or similarly sized accessory. There is also a dedicated slot to hold an iPad or other 8" tablet. A flip-top lid folds over the main compartment and fastens onto the front accessory pocket via a magnetic closure.

The bag can be carried by the top handle, worn over your shoulder with an adjustable strap, or worn on a pant belt using the rear pass-through slot. It can also be worn as a backpack by using an optional Shoulder Harness V2.0. Stretchable side pockets and an interior mesh pocket can hold accessories such as memory cards, batteries, or the included seam-sealed rain cover.