With flexible 22mm foam panels for additional flotation and impact protection in heavy surf, the Yulex® Impact Vest is made from stretchy 1.5mm 85% Yulex natural rubber/15% synthetic rubber by polymer content. Made in a Fair Trade Certified™ factory. The Men's Yulex® Impact Vest is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com. | Patagonia Men's Yulex® Impact Wetsuit Vest in Black, Large