I just ordered another one and decided to get the blue & black. Wrong! The all black one is Polyolefin throughout. The blue & black is not. The blue area over the shoulders back and front are thin lycra. No insulation whatsoever and will fade and wear more than the Polyolefin. Had to send the blue/black back and get it exchanged for a solid black one. Cost me shipping even though there is no mention of the difference in construction the product description.