Designed for comfort under your wetsuit, this hooded vest is an easy way to add extra warmth. Made of 85% Yulex® natural rubber/15% synthetic rubber by polymer content; natural rubber is from sources that are Forest Stewardship Council® certified by the Rainforest Alliance. Fair Trade Certified™ sewn. Stretchy 85% Yulex® natural rubber/15% synthetic rubber by polymer content; the natural rubber is Forest Stewardship Council® certified by the Rainforest Alliance; the synthetic rubber is chlorine-free Thermal hood lined with a warm and stretchy solution-dyed 95% polyester (51% recycled)/5% elastane microgrid that dries fast and minimizes weight Recycled Polyester Linings and Water-Based Glue Stretchy, solution-dyed linings; interior: 100% recycled polyester jersey; exterior: 88% recycled polyester/12% elastane; lining and exterior fabrics laminated with solvent-free AquaA™ glue Face opening is easily adjustable with elastic cord and cinch lock Shuts Out Water Outer-neck baffle prevents water entry for maximum warmth and comfort Glued and blindstitched construction for comfort and durability Patagonia Yulex Water Heater Hooded Vest