Extralarge 15 x 20 Commercial Size for industrial applications Superthick 5 mil bags offer the best protection and puncture resistance with no loss of freshness BLACKOUT Completely black on both sides for maximum privacy and protection from light degredation Embossed side allows for easy conforming to contents as well as easy vacuum sealing Foodsafe 100 BPAfree Can withstand the heat necessary for sous vide applications Not ovensafe