Sievi Lazer Roller High+ S3 Ankle Boot – BOA® Fit, FlexEnergy®, PORON XRD® Ankle Support

The Sievi Lazer Roller High+ ankle boot blends cutting-edge comfort technology with serious protection, making it perfect for tough working conditions.

The visible FlexEnergy® element in the heel increases flexibility by storing and returning over 55% of energy with every step. The Sievi TractionPro® friction sole ensures maximum grip, while PORON XRD® ankle support moulds to your foot, providing stability and superior shock absorption.

The BOA® Fit System delivers a quick, micro-adjustable precision fit, engineered to perform in any environment. Safety is uncompromised with a composite toecap and steel penetration-resistant midsole, certified to the latest standards.

Key Features:

• FlexEnergy® Heel Component: Stores and returns energy, enhancing flexibility and comfort

• PORON XRD® Ankle Support: Adapts to your foot for stability and shock absorption

• Sievi TractionPro® Sole: Exceptional grip across varied conditions

• BOA® Fit System: Fast, effortless, micro-adjustable lacing

• Safety Class: EN ISO 20345:2022 S3 FO HRO SC SR ESD

• Composite Toecap & Steel Midsole: Lightweight impact and puncture protection

• Upper Material: Microfibre

• Sole Material: Double density PU/RU, TractionPro

• Size Range: 35 – 48 (UK 2.5 – 14)

Free Sievi Foot Scanning Service, click for details