Description Grubbs Midline INSU-FOAM ULTRAâ„¢ – A compression set of less than 7% compared to 20-25% to be found in other neoprene boots. 5.0 TECHNOLOGYâ„¢ – A moisture wicking terry knit liner for ultimate dryness and stretchability around the calves. Removable 6mm NITROCELLâ„¢ footbed – A nitrogen bubble structure increases the cushioning and insulative properties of the boots foot bed SUPER-DRIâ„¢ lining UNDER FOOT CHASSISâ„¢ 2mm Natural Rubber Shell Self Hardening Layers Of Epoxy Impregnated Material Also Featuring the new TRAXâ„¢ sole with HEXZORBâ„¢ and DURAPRENEâ„¢ technology.
