Lowepro Pro Tactic BP 250AW Backpack The Pro Tactic Series delivers high performance to pro photographers who need an urban-inspired pack that delivers on all fronts: accessibility, versatility, comfort & organization. A robust exterior is built with a Slip Lock™ compatible strap system for limitless set-ups. & the customizable interior is designed with the patent-pending Max Fit System™ of adjustable dividers built for easy fine-tuning of fit & maximum gear capacity. Get mission-critical access to pro-sized gear & mirrorless kits with three packs & three shoulder bag models. Create limitless set-ups with the Max Fit System interior & Slip Lock exterior. Work hard with support thanks to the Activ Zone System harness, built for targeted comfort (on Pro Tactic backpacks only). 250AW Fits: Mirrorless camera (such as Olympus OM-D E-M1) with 12-40mm lens attached 3-4 lenses/flashes 11" Mac Book Air Accessories