Rock Fall RF540 Monzonite Black — High Leg Waterproof Internal Metatarsal Side Zip Safety Boot

The Rock Fall metatarsal safety boot RF540 Monzonite is a durable waterproof S3 composite toe work boot designed for demanding environments across the UK.

Ideal for workers looking for rock fall metatarsal safety boots and waterproof safety boots for industrial and construction environments.

The Rock Fall RF540 Monzonite Black is a premium high leg waterproof internal metatarsal side zip safety boot combining non-metallic composite protection with an internal metatarsal guard, high leg upper for maximum ankle support, and a side zip for fast on and off. S3 WR MET SRC rated — built for heavy industry, construction, and trades where metatarsal protection and waterproofing are essential. Certified to EN ISO 20345.

Ideal for workers looking for metatarsal safety boots and waterproof safety boots suitable for industrial and construction environments.

✅ Safety Ratings & Certifications

• ✅ EN ISO 20345 certified
• ✅ S3 — composite toecap + composite midsole + waterproof upper + antistatic + energy absorbing heel
• ✅ WR — water resistant upper
• ✅ MET — internal metatarsal protection
• ✅ SRC — highest slip resistance on both ceramic tile (SRA) and steel (SRB)

✅ Key Features

• ✅ High Leg Upper — maximum ankle support and protection on demanding sites
• ✅ Internal Metatarsal Guard (MET) — protects the metatarsal bones from heavy falling objects
• ✅ Side Zip — fast, convenient on and off without unlacing
• ✅ 100% Non-Metallic — composite construction, safe for metal detector environments
• ✅ Fully Waterproof — waterproof upper keeps feet dry in all conditions
• ✅ Composite Toe Cap — lightweight 200J protection, non-sparking
• ✅ Composite Midsole — non-metallic penetration protection underfoot
• ✅ SRC Slip Resistance — highest slip resistance rating available
• ✅ Antistatic — safe for electrical environments
• ✅ Energy Absorbing Heel — reduces fatigue on hard surfaces

Who Is the Rock Fall RF540 Monzonite For?

• Heavy industry and construction workers requiring metatarsal protection
• Workers who need a high leg boot with fast side zip access
• Workers in metal detector environments (non-metallic)
• Anyone who needs a waterproof high leg metatarsal side zip safety boot

Frequently Asked Questions

What is the advantage of an internal metatarsal guard over an external one?
An internal metatarsal guard sits inside the boot, providing a cleaner profile and reducing the risk of snagging on equipment or machinery. It offers the same level of metatarsal protection as an external guard while being more comfortable and practical for everyday wear.

Does IronStep offer free UK delivery?
Yes — free standard UK delivery on all orders over £50.