ION Element 3/2 Back Zip wetsuit for men is designed for water enthusiasts who seek simplicity and comfort in the ocean. The Element 3/2 Back Zip wetsuit offers a supple, stretchy, and durable design, incorporating features from the higher-end technical range. The Silk_Stuff lining on the upper body ensures a comfortable fit and excellent shoulder flexibility, while the Hot_Stuff 2.0 thermo lining enhances warmth, flexibility, and overall comfort. Silk_Stuff inside lining on the upper body for a comfortable fit and good stretch Hot_Stuff 2.0 thermo lining improves warmth, flexibility, and comfort Reinforced critical seams for long-lasting durability Supple and stretchy material for ease of movement Robust construction for enduring multiple trips Materials 80% Neopren, 20% nylon