Rip Curl Men's Dawn Patrol 4/3mm Chest Zip Fullsuit Wetsuit The Dawn Patrol 4/3 Chest Zip Steamer ensures superior insulation with E4 thermo lining, critical stress point taping, and a comfortable chest zip entry, making it ideal for colder surf conditions. Composition: 80% Rubber & 20% Polyamide Plant-Based Foam From Natural Chest zip GB Seam 4x3 mm E5 flash lining - neoprene E5 neoprene E4 thermo lining - neoprene E5 tape Critical stress point taping Internal key pocket Water based lamination Natural Rubber-Based Foam Recycled Internal Lining Thickness 4/3mm Entry System Chest-Zip Temperature Guide 50 ºF to 63 ºF Collection Dawn Patrol Style Code 16QMFS Warning This product can expose you to chemicals including chloroprene, which is known to the State of California to cause cancer. More information p65warnings.ca.gov