It holds up to six standard paper grocery bags in place, and anything else you need, so your precious items aren't flying around your trunk! Another cool feature is that we've sewn in tough ballistic nylon handles to take the Trunk Tote with you after you've loaded it up! Cuts your trips back and forth to the vehicle to unload stuff. Picnics, tailgate parties, and trips to friends are much more efficient. Pocket, dividers, mesh sides, and a fitted top cover add to the versatility. Overall dimensions are 30"W x 21"D x 12 1/4"T with two accordion compartments measuring 15" x 21". Did I mention it collapses to only 21" x 12" x 4" and held closed with heavy duty snaps? Buy a few, we've really done our homework on this one.