The multi-purpose Sirui Weekender is a photo backpack with a side opening for easy access to your equipment. The versatile expandable top compartment is great for travelers or weekend shooters. The ergonomic Shoulder Harness System makes the backpack feel light and extremely comfortable. The Air Run Ventilation System keeps your back noticeably cooler and dryer. Other features: removable camera insert; water resistant tarp; Twiz-Lock security system. Fits: One DSLR with standard zoom lens attached 1-2 lenses flash tablet up to 15 inch laptop plus accessories.