Mono integral piece of ultra-elastic neoprene of 5 mm. Black color. Protected back zip. Seams thermo sealed, which makes it more waterproof and durable. Neoprene thermal chest and back. Includes Supra Tex reinforcements (anti neoprene abrasion) on shoulders, elbows and rump. Rubber reinforcement on knees. Right leg pocket. Small neck zip for relief of diver. Suit used by many military, police and rescue for its great comfort and robustness.