FlexEnergy® energi-retur: over 55%

and the anti-roll section reduces the risk of the tool rolling off the work surface

Develops high strength after curing and resists shock and vibration

Static Protection for Electronic Devices

SieviAir R4 Roller S1P str. 43 Unit(s):Pair FlexEnergy® energi-retur: over 55%. BOA Fit System fastening mechanism at the side adds to footwear comfort. The FlexEnergy component, the worlds most advanced shock absorbing heel, stores kinetic energy and gives a greater than 55% energy return. The SieviAir sole dissipates the perspiration created by the heat of the feet through special ducts in the side of soles.