FLEX O BAG® Trash Can Liners and Contractor Bags, 55 gal, 3 mil, 36 in X 56 in, Black, Extra HD Contractor Bag no checkout Exhale valve lets workers breathe Exhale valve lets workers breathe easy and stay cool Dura Mesh® shell resists collapsing in heat and humidity Molded nose bridge seals easily without a metal noseband Facepiece is naturally contoured for less pressure Straps are securely attached so they don’t break at the seal Silicone facepiece conforms to facial features Contoured sealing flange and cradle suspension system eliminates discomfort Cradle suspension system allows the facepiece to seal evenly on the face without creating pressure points High Count Industrial Grade Trash Can Liners and Tall Kitchen Bags