. Nautilus Safety Footwear - Spark CT. Color Grey 1. On sale for $109.99. MSRP $119.99.. 3.5 out of 5 starsOnly on Zappos+4Brand NameNautilus Safety FootwearProduct NameSpark CTColorGrey 1Price$109.99MSRP: $119.99Rating4Rated 4 stars out of 5(1207)