CS, you're looking at gauze rolls, not Kerlix there. Gauze rolls are thin - imagine unfolding a 4x4 so that it's only 1 layer thick, instead of the padded bandage it normally is. That's what a gauze roll is. Kerlix is a fluffier roll of gauze, whereas your budget rolls are "one-ply." Both work to hold bandages on just fine, but kerlix is more absorbant.