Korkers Devil's Canyon Wading Boot with Kling-On and Studded Kling-On Outsoles Integrated, large drainage ports and internal midsole drainage channels Includes Plain Kling-On and Studded Kling-On Sticky Rubber Soles M2 Boa Lacing System: quick on/off and custom fit Hydrophobic Upper Materials: faster dry times to lessen the chance of spreading invasive species Enhanced midsole design, rubberized anti-abrasion material, reduced seams, recessed triple-stitched uppers and molded toe cap, 2lbs 14oz per pair Integrated, large drainage ports and internal midsole drainage channels