The Gul G Force Flatlock 3/2mm Back Zip Wetsuit in Black & Navy is an all new G Force. For this season there is a new design and construction. Making use of improved materials and the latest in neoprene technology the G Force still retains its fresh look. The flatlock construction provides a flexible and comfortable feel. The X-Flex neoprene means the G Force will remain light and stretchy, reduce bulk and mean your body can continue moving freely. D-Flex neoprene areas increase durability. PowerTex knees are designed to absorb impact. Product Information: • Product Code: GF1305S21-BKNA • Flatlock durable seam construction. • Super stretchy X Flex neoprene. • D Flex neoprene for durability. • PowerTex knees. • Velcro adjustable neck. • Smooth-skin chest and back. • Titanium II locking heat in. • Non-petroleum based neoprene.