Very fine pale (7.5 YR 8/3, toward 8/4) fabric with no inclusions individually discernible by eye and only tiny darker specs at 10x mag. Surface thinly slipped, brushed smoothed. Slip is light brown (5YR 6/6), though darker where thickest.
The above information comes from Sebastian Heath and Billur Tekkok, https://classics.uc.edu/troy/grbpottery/html/lr-lightcolored.html.