Rock Fall Nimbus Women's Safety Trainer

Built for Women. Designed for Safety.

Unlike generic unisex designs, the RF650 Nimbus is constructed on a women-specific last that accounts for the anatomical differences of a woman's foot — including a narrower heel profile. The result is a secure, slip-free fit that eliminates unwanted movement, reduces fatigue and lets you focus entirely on the job at hand. Available in smaller sizes to ensure every woman finds her perfect fit.

Uncompromising Protection, Remarkably Light

The Nimbus is equipped with a lightweight fiberglass toecap rated to withstand impacts of up to 200 joules — providing serious protection without the bulk of traditional steel. The 100% non-metallic construction makes it ideal for roles requiring security screening or work near sensitive electrical equipment. An exclusively crafted penetration-resistant midsole, developed by Activ-Step Footwear Components, guards against sharp objects underfoot while preserving the shoe's natural, flexible movement.

Cushioning That Goes the Distance

Long shifts demand serious cushioning. The RF650 pairs a chunky yet flexible AEROSTRIDE midsole with an Activ-Step® PU cushioned footbed to deliver exceptional shock absorption from the first step to the last. The combination minimises fatigue on hard floors and uneven outdoor terrain, giving you the kind of all-day comfort you'd expect from a premium sports trainer — with the safety credentials your role demands.

Cool, Dry and Ready for Anything

The high-performance breathable mesh upper is engineered to actively dispel heat and moisture, keeping your feet cool and dry throughout even the most demanding shifts. A water-repellent treatment adds an extra layer of defence against light rain and surface moisture, so whatever the environment throws at you, the Nimbus is ready.

Safety with a Sustainable Conscience

Guided by Rock Fall's Better Materials Framework, the RF650 Nimbus incorporates eco-conscious materials without compromising on performance. The sock liner is made from 100% recycled polyester, and the heel counter uses 60% recycled TPU — giving new life to waste materials and keeping them out of landfill. Even the packaging is fully sustainable. Staying safe at work has never been better for the planet.

• Women's-Specific Fit: Built on a women's last with a narrower heel for a secure, supportive fit that prevents slippage and discomfort.
• Fiberglass Toecap — 200J Impact Protection: Lightweight and non-metallic, delivering certified impact resistance without added weight or interference with security equipment.
• AEROSTRIDE Cushioned Sole: A flexible, chunky midsole platform provides extreme shock absorption, keeping you comfortable on hard floors and outdoor terrain all day long.
• Activ-Step® PU Footbed: A premium cushioned insole that works in harmony with the AEROSTRIDE midsole to reduce fatigue and support all-day movement.
• Penetration-Resistant Midsole (PS Rated): An exclusively developed protective midsole guards against sharp object penetration without restricting flexibility.
• Breathable, Water-Repellent Mesh Upper: High-performance upper engineered to keep feet cool, dry and protected against light moisture.
• 100% Non-Metallic Construction: Fully metal-free from toecap to sole — ideal for security-sensitive environments and electrical hazard zones.
• Anti-Static & Slip-Resistant Outsole (SR Rated): High-grip outsole minimises slip risk across a wide range of surfaces, with anti-static properties for added workplace safety.
• Recycled Materials: 100% recycled polyester sock liner and 60% recycled TPU heel counter, supporting a greener future without sacrificing comfort.
• Fully Sustainable Packaging: Every Nimbus ships in eco-friendly packaging, completing the sustainability story from factory to doorstep.

Technical Specification

Product Code: RF650

Safety Standard: EN ISO 20345

Toecap: Fibreglass — 200J impact resistance

Midsole Protection: PS Rated penetration-resistant insert (Activ-Step)

Sole Technology: AEROSTRIDE cushioned midsole

Footbed: Activ-Step® PU cushioned footbed

Upper Material: Water-repellent breathable mesh

Metallic Content: 100% Non-Metallic

Slip Resistance: SR Rated

Anti-Static: Yes

Fit: Women's-specific last — narrower heel profile

Sock Liner: 100% Recycled polyester

Heel Counter: 60% Recycled TPU

Packaging: Fully sustainable

Available Sizes: Smaller sizes — women's sizing range

Q: Are the Rock Fall RF650 Nimbus trainers designed specifically for women?

A: Yes. The RF650 Nimbus is built on a women's-specific last that accounts for the anatomical differences of the female foot, particularly a narrower heel. This provides a more secure, supportive fit compared to unisex designs, helping to prevent slippage and discomfort during long shifts.

Q: What level of safety protection do the Nimbus trainers offer?

A: The RF650 Nimbus features a lightweight fiberglass toecap rated to 200 joules of impact resistance, meeting EN ISO 20345 standards. They also include a PS-rated penetration-resistant midsole to protect against sharp objects underfoot, plus anti-static and SR slip-resistant properties.

Q: Are the RF650 Nimbus safety trainers metal-free?

A: Yes. The Rock Fall RF650 Nimbus is 100% non-metallic throughout — including the fiberglass toecap and penetration-resistant midsole. This makes them suitable for roles requiring security screening, such as airports and secure facilities, as well as environments with electrical hazard risks.

Q: Are these safety trainers comfortable for all-day wear?

A: Absolutely. The Nimbus is engineered for all-day comfort thanks to its AEROSTRIDE cushioned midsole, which provides exceptional shock absorption, and the Activ-Step® PU cushioned footbed that minimises fatigue. The breathable mesh upper keeps feet cool and dry throughout long shifts.

Q: Are the Rock Fall Nimbus trainers sustainable?

A: Yes. Rock Fall's Better Materials Framework means the RF650 Nimbus incorporates a 100% recycled polyester sock liner and a heel counter made from 60% recycled TPU. The trainers also come in fully sustainable packaging, making them a responsible choice for eco-conscious buyers.

Q: What surfaces are the RF650 Nimbus trainers suitable for?

A: The Nimbus is designed for use on both hard indoor floors and outdoor terrain. The high-performance slip-resistant rubber outsole and AEROSTRIDE midsole work together to deliver grip, stability and comfort across a wide variety of workplace surfaces.