Style: Step-in Jacket, John. Thickness: Use in Cold Water Diving ', '7mm', '#F0F7FD')"; onMouseout="hideddrivetip(29)"7mm Material: Is a synthetic rubber Developed by DuPont in the 1930s, It is resistance to a wide temperature range, holds up well when flexing and twisting, and also is waterproof and buoyant hence making it very practical for scuba diving. It comes in a variety of millimeters thicknesses', 'Neoprene', '#F0F7FD')"; onMouseout="hideddrivetip(19)"Neoprene Seams: Glued and Sewn Zip: Front Slant Zip Jacket / Heavy Duty