What structure is the Trace Padded Neck Warmer made with to block wind and cold air?

nozzle quiz's padded neck warmer arranges different materials in layers, from the outer surface that encounters cold wind to the inside that touches the skin. The outermost layer is enclosed by a high-density windproof and water-repellent fabric woven from 100% nylon fibers^[1][2]. Generally, densely woven nylon fabric has the property of reducing cold air from leaking through the fibers and repelling light water droplets.

Cold air is blocked by filling the filling space directly beneath the outer fabric with 3M™ Thinsulate™ thermal insulation technology^[3]. Thinsulate is widely used as a functional insulation material that reduces heat loss without excessively bulking up the thickness by trapping air between fine fiber layers. Next, the lining that touches the neck and chin is layered with a lightweight fleece made of 100% polyester fibers, finishing with a soft and cozy feel^[4][5].

The shape wrapped around the neck and the finishing details are also tailored to reduce the penetration of cold air. The overall dimensions are 70cm in length and 26.5cm in width, and an oblique cut line is incorporated so that it wraps naturally along the neck and shoulder lines^[6][7]. An adjustable string that reflects light in the dark is placed along the circumference, configured so that the wearer can pull and fasten the fit as much as desired^[8].