The Advant 4/3 MM Back Zip Fullsuit for women is made with more environmentally friendly sustainable materials and processes. The new Exoflex material has extra stretch so you can move freely in the water. It features strategically placed seams so it doesn't get in the way of your movements. It has an insulating interior that retains heat to keep you warm and comfortable throughout your session. Seams are taped and reinforced at critical points to ensure durability. There is a small key pocket on the front panel.