With Omnitrax Interchangeable Sole System. Unbelievably lightweight with extreme durability and comfort, these boots fit like a glove and deliver athletic and agile performance. 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. Rubberized anti-abrasion synthetic materials, reduced seams, recessed triple-stitched uppers and a molded toe cap ensure extreme durability. Hydrophobic construction, integrated, large drainage ports and internal drainage channels reduce water retention keeping boots light and comfortable all day. Approx. wt: 46-oz.  (Half sizes order up)