REBEL FX2 Metatarsal Boot The FX2 Metatarsal Boot is a general-purpose work boot that features a 200J steel toe cap, a fixed metatarsal guard as well as a steel midsole for anti-penetration properties, ensuring optimal protection in a variety of work environments. The FX2 Metatarsal Boot is ISO 20345 and NRCS approved. SKU: FX2-MT-S1P