Answer:

seamless

Answer	Crossword Clue
SEAMLESS	Smooth, as a transition
SEAMLESS	Smooth and continuous
SEAMLESS	Like some hose.

SEAMLESS	Like some nylons
SEAMLESS	Kind of bra or stocking
SEAMLESS	Like some stockings
SEAMLESS	What the coal company didn't want to be?
SEAMLESS	Like some transitions
SEAMLESS	Continuous