I ordered four chairs with Nobletex Platinum fabric.  Very nice quality, not sure how the fabric will stand up to the test of time as I feel it may snag fairly easily.  Chairs are comfortable and swivel easily but do not lock into position, if that's what you were looking for.  I'm 5'6" and sit comfortably with either my feet on the floor, or curled up next to me.  Highly recommend ordering swatches, although the batch of swatches I received all had names that did not match up at all to what the names were online.  Numerous emails to try and figure it out, and the matter was finally resolved.  Would buy again.