Sievi FastX DFlex Roller S3S (sizes 35-38)

The Sievi FastX DFlex Roller S3S safety shoes in sizes 35-38 combine advanced technology with ergonomic design to deliver superior protection and comfort. Equipped with the BOA Fit System Li2, these shoes offer precise, easily adjustable fit settings that ensure optimal support throughout the day. The lightweight and flexible sole integrates the Sievi DualFlex+® midsole, TractionPro® friction outsole, and a conductive polyurethane layer, providing excellent stability and slip resistance. Featuring an aluminium toecap and a perforation-resistant composite midsole, the shoes meet safety class S3S EN ISO 20345:2022+A1:2024 standards. The microfibre and textile upper enhances breathability and durability, while the triple density PU/SC/RU sole materials ensure lasting performance in demanding environments.

Sievi’s next-generation FastX® DFlex safety shoe features a light and flexible sole, consisting of the Sievi DualFlex+® flexible midsole, the TractionPro® friction outsole and a conductive polyurethane layer that provides stability. The shoe features the new BOA® Fit System Li2 dial, which is micro-adjustable, both forwards and backwards, to ensure a fine-tuned fit.

Safety class

S3S EN ISO 20345:2022+A1:2024 S3S SR SC FO

Specifications

• Toecap: Aluminium
• Perforation Resistant Midsole: Composite PS
• Upper material: Microfiber, Textile
• Sole material: Triple density PU/SC/RU
• BOA® lace length: 70 cm

Properties

Downloads

• EU DECLARATION OF CONFORMITY (en)
• BOA® Fit System
• Instructions