This is the PERFECT sized bag- Many pockets to keep you organized. Gold hardware. 2 exterior pockets- 1 slip pocket on the back (perfect for your phone) and 1 pocket with snap flap closure on the front ( perfect for keys). Adjustable but not removable strap. The main compartment has snap flap closure. 3 interior pockets- 1 zip pocket and 2 slip pockets. Not filters used on pics and smoke free home.