A high-performance, neoprene-free 3mm/2.5mm wetsuit made of 85% Yulex® natural rubber/15% synthetic rubber by polymer content with a recycled nylon lining; the natural rubber is from sources that are Forest Stewardship Council® certified by Preferred by Nature™. Suggested water temperatures: 60°–65° F/16°–18° C. Made in a Fair Trade Certified™ factory. The Men's R1® Yulex® Regulator® Back-Zip Full Suit is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com. | Patagonia Men's R1® Yulex® Regulator® Back-Zip Full Wetsuit in Black, Large/Short