[1] : The Collaborative International Dictionary of English v.0.48

off-the-rack \off-the-rack\ adj.
   intended to be worn without alterations; ready-to-wear; -- of
   clothing. contrasted with made-to-order, custom-made. see
   pret-a-porter

   syn: off-the-shelf, ready-to-wear, pret-a-porter.
        wordnet 1.5
see also:
made-to-order custom-made pret-a-porter 

[2] : WordNet (r) 2.0

off-the-rack
     adj : especially of clothing made in standard sizes and
           available from merchandise in stock; "a ready-made
           jacket"; "ready-to-wear clothes" syn: off-the-shelf,
            off-the-peg, ready-to-wear
see also:
off-the-shelf off-the-peg ready-to-wear 

Off-The-Rack >> O Words
Off-The-Rack, definition of term: Off-The-Rack
off-the-rack_pag1.html