Uline is going to have basically every conceivable combination of sizes, thicknesses, types of closings (if thats how you would describe it). I will say, pay the extra few pennies per bag for the thicker material if possible. Makes loading them and boxing them WAY easier than the super thin ones. I like the ones with the adhesive flap, but have used the foldover type with no adhesive as well (annoying in my opinion, but I see why people use them since it is easier to remove the shirt and rebag if necessary). They also make ones with perforations that are advertised as safer and easier to push the air out. Id avoid any of the ziplock style ones since closing those in bulk is a giant pain in the ass.
