Wild Basin features the Eureka "Therma Shield" insulation.  Therma Shield is a proprietary 7 hole polyester fiber fill.  Each Therma Shield strand contains 7 hollow tunnels that run the length of the strand.  These tunnels create dead air space that effectively retains body warmth. 

Constructed of a polyester mini rip-stop outer shell with taffeta inner liner. Double layer off-set multi-needle quilt construction helps prevent cold spots by eliminating thin areas in the insulation.  Fully adjustable contoured hood and adjustable storm collar. #5 non locking, self repairing zippers.