<https://www.chempacsolutions.co.uk/ultrasonic-tunnel-jacket-41974-p.asp#product/41995>
<http://schema.org/description>
"The Ultrasonic Tunnel Jacket provides outstanding warmth and insulation. This style uses revolutionary heat seal construction to form the baffle lines. Bonding the fabric without stitching or thread improves the water resistance and the chances of filling, clumping or shifting is completely reduced."
<https://www.chempacsolutions.co.uk/ultrasonic-tunnel-jacket-41974-p.asp>