PERFORMANCE: Integrated air vent allows bubbles to escape through the top of the hood without promoting water exchange.nMULTI-USE: Designed for warmth while diving at any depth and in any water temperature.ANATOMIC FIT: Large bib of thinner material provides a comfortablenXSPAN TECHNOLOGY: Exclusive ultra soft material made with 4-way super stretch neoprene.MULTI-USE: Designed to keep warm while diving and scuba throughout all weather and water conditions.nTips To Measure: Measuring heads for hood sizes: Neck column: The measurement of the circumference of the neck .nHead column: If you measure the head in the same way a headband would fit around it, the number you come up with is what you would look up.nXSPAN TECHNOLOGY: Exclusive ultra soft material made with 4-way super stretch neoprene.nMULTI-USE: Designed for warmth while diving at any depth and in any water temperature.nANATOMIC FIT: Large bib of thinner material provides a comfortablenPremium neoprene material, anatomical fit, large bib in thinner material, glued and sewn seams