This is the 1mm Tilos Mens Metalite Jumpsuit Wetsuit Scuba Diving Warm Water Full Wet Suit It Features: 1mm Metal-Light coated neoprene Reflects as much heat as a 2 ~ 3mm thick suit Adjustable Velcro collar Back key pocket Flat-Stitched throughout Back YKK metal zipper head PVC knee protector and ankle stirrups Great for warmer waters or for layering under a thicker suit! Great for scuba diving, surfing, jet skiing and kayaking!