1970s Lightweight Black Maxi Lounge Dress with Orange and Purple Florals, S

1960s-1970s era colorful boho maxi dress, originally probably a lounge dress.  Black polyester A-line tank dress with bold floral print in purple, orange, yellow, and green.  
Comes with matching tie belt.
Brand on tag is "Nite Owls" 
 
chest 34" 
waist 40"
hip 50"
53" length from shoulder to hem
 
woven fabric offers no stretch.
in excellent vintage condition.