so I cant speak on arch support. Don?t know why I didn?t buy one of these sooner. Thats not 8oz thats 0. I play guitar and keep my amp nearby, to my right and a little behind me, and this mic does a good job of excluding my amp and other stage sounds. there?s no elastic to gold them tight to the foot. I thought it was straightforward and end-up go back three-time to rebuild. I bought these online for the convenience, but I wasnt expecting such poor quality. Really the only negatives I see are the hole and the sizing. Blade Runner hört sich dann genauso an wie der Regisseur es vorgesehen hat. Life is just not worth it without a pair of Crocs!