Vent White Roller S1
Vent White Roller S1
The BOA® Fit System provides added performance: just turn the dial for a micro-adjustable and precise fit. Microfibre withstands frequent washing. FlexStep® soles grip firmly even on challenging surfaces. Dual insoles add to comfort. Antistatic and ESD.
The BOA® Fit System provides added performance: just turn the dial for a micro-adjustable and precise fit. Microfibre withstands frequent washing. FlexStep® soles grip firmly even on challenging surfaces. Dual insoles add to comfort. Antistatic and ESD.

Aluminium
The toecap protects toes from falling objects and compression. Meets the requirements of the EN ISO 20345:2022 standard: shock resistance is 200 J and resistance to compression 15 000 N. The aluminium toe cap is 50 % lighter than conventional steel toecaps.

Resistance to oil and many chemicals
The footwear sole resists oil and many chemicals. The oil resistance of Sievi footwear meets the requirements of the EN ISO 20345:2022 standard.

Antistatic
Antistatic footwear releases in a controlled manner static electricity accumulated in the body. The resistance limits are 100 kΩ - 1000 MΩ.

Water repellent
The upper material used in this footwear is water repellent. Its water resistance meets the requirements of the EN ISO 20345:2022 standard.

Shock-absorbing heel
Shock-absorption of the heel is a requirement of EN ISO 20345:2022 and EN ISO 20347:2022 standards: the shock absorption of the footwear must be at least 20 J. In all Sievi footwear the cushioning effect is guaranteed by the use of FlexStep® sole material, see FlexStep® for more information.

Single Density PU
The footwear sole is made of FlexStep® material. This single density microporous structured polyurethane sole offers very high slip-resistance and flexibility providing excellent shock absorption. Heat resistant up to 120°C.

DUAL Comfort insole
The insole consists of three layers: a soft surface material, a breathable interlayer and a lightweight, shock-absorbing EVA bottom layer. On the heel and under the ball of the foot there
is a PORON® shock absorbing cushion, which absorbs external shocks and reduces strain.

ESD
Through its sole construction, ESD footwear provides a safe and controlled method of discharging the body’s static electricity. The resistance limits 100 kΩ - 35 MΩ for the Sievi ESD footwear are stricter than for antistatic footwear (IEC 61340-5-1). Wearing ESD footwear can help you avoid damage to sensitive electronic equipment.

BOA® Fit System
The BOA® Fit System delivers micro-adjustable precision fit, engineered to perform in the toughest conditions. BOA® Fit System consists of three integral parts: a micro-adjustable dial, a super-strong lightweight lace and low friction lace guides.

3D-dry®
The 3D-dry® lining, developed by Sievi, transfers moisture away from the foot to the second layer of the lining material and further through the upper and away from the footwear.

FlexStep®
The microporous FlexStep® sole material developed by Sievi maintains its excellent shock absorption and flexibility in freezing conditions. The structure of the FlexStep®flexible sole prevents strain on the feet and spine and absorbs shocks. The FlexStep® flexible sole is featured on all Sievi footwear.
-
SizeProductGTIN
-
3644-52120-142-96W6438157213020
-
3744-52120-142-96W6438157213037
-
3844-52120-142-96W6438157213044
-
3944-52120-143-96W6438157213051
-
4044-52120-143-96W6438157213068
-
4144-52120-143-96W6438157213075
-
4244-52120-143-96W6438157213082
-
4344-52120-143-96W6438157213099
-
4444-52120-143-96W6438157213105
-
4544-52120-143-96W6438157213112
-
4644-52120-143-96W6438157213129
-
4744-52120-143-96W6438157213136