FREEDOM OF MOVEMENT - FlexFit articulating harness is responsive to the motion of the user's shoulders, back and hips - increasing comfort and reducing fatigue. TRIANGULAR SHAPE - Conforms to the back for a closer fit - reduces accidental contact with walls and doorways. STAY COOLER - Open weave harness allows any heat to dissipate. PRODUCTIVE - Cleans carpets and hard surfaces without stirring up dust. FILTRATION - Advanced filtration system captures and contains microscopic dust preventing them from being reintroduced back into the environment. EASY FILTER BAG CHANGE - Quick-release, die cast latches improve filter compartment seal.