Shamwow 23 x 17 inches = 2.75 oz
cotton bandana 21 x 21 inches = 0.5 oz
You can carry 5 bandanas in different colors for less than 1 Shamwow.
I've used both.The Shamwow does a better job as a body towel, but the bandana beats it hands down everywhere else....and is multi-functional. I carry 2 bandanas; one for the kitchen and 1 for me (headband, hanky, sun screen, wiping down tent, straining big stuff out of water, triangle bandage, etc.)