The ones in the REI link weigh 4 lbs. How much weight saving is that vs a standard aluminum folding chair? Granted it does pack down smaller but after seeing someone with the Helinox chairs we stopped at Cabelas and picked two up. No they don't have arms but they are small enough and light enough to fit in a smaller camelback backpack. For the limited use I'm fine with no arms on them. I like the lightness and the size. I'll save the larger chairs for at home and camping.