Simpson Hightop ShoesThe Hightop is a high-top design with a satin suede upper and is FI 3.3/5 approved. The inner fleece lining is FR. There is a triple layer anterior toe area for added wear protection with additional reinforcements in the heel and lace guard. Double speed-fit closure. The outer sole is a non-slip, super-sensitive PU sole with posi-grip traction.SFI 3.3/5 CertificationBlack available in sizes 4 - 14Blue and Red available in sizes 8 - 12