This 5/4/3mm premium chest zip wetsuit has been designed and tested for the harshest winter conditions. It features an internal rapid-dry thermal lining for ultimate warmth and comfort. The entire wetsuit is made from the highest grade limestone-based neoprene. The ergonomic hood features 2.5mm thick neoprene for warmth and flexibility. All seams are glued, taped and blind stitched for maximum strength and seal. Eco elements included are solvent free water-based glue and Eco Carbon Black neoprene.