- Choose x-small (12" to 13"), small (13" to 14"), medium (14" to 15"), large (15" to 16"), x-large (16" to 18") or xx-large (18" to 20") - 13" sleeve is 1/4" thick with moveable orthopedic felt horseshoe buttress, four-position extension stop hinges set in vinyl lined pockets, two 1" and 2" hook and loop straps above and below the patellar opening with elastic insets
