Unbelievably lightweight with extreme durability and comfort. Change out soles in mere seconds with no tools. Comes outfitted with TWO STYLES of OmniTrax Interchangeable full perimeter traction outsoles, one set of Kling-On Sticky Rubber, and one set of Felt. The tried-and-true M2 BOA LACING SYSTEM (guaranteed for life) provides a glovelike fit with infinite degrees of fine tuning in and out of the water with a simple one handed adjustment. Turn the dial clockwise to tighten the boot, pull the dial out to remove tension. Boots open wide for easy in/out. Internal drainage allows water to flow thru internal channels, then out midsole ports removing excess water and weight. 3PFS Achilles stabilization provide superlative fit and function. Molded TPU Toe Cap for durability and toe bump protection. Approx. wt: 47-oz. (Half sizes order up)