The Midtop shoes is SFI 3.3/5 certified. A single speed-fit closure locks away Nomex laces. Achilles relief cut for maximum flexibility. Fleece FR lining. Satin suide toe, heel and lace guard reinforcements. Triple layer anterior toe layer for added wear protection. Non-slip, super sensitive PU sole with posi-grip traction. Attractive Black and Gray two tone design.