If you are looking for the Tretorns from the 70's-80's, they don't make them anymore.  The "new" Tretorns do look the same, but the pillow-like cushion we all knew and loved, is no longer.  They feel just like Keds now.  I would not use these for tennis anymore, as there is no support or cushioning for play.  If you just want the "look" of the old Tretorn, then these are perfect.