Sidi Crossfire 3 SRS BootsDescription The Sidi Crossfire 3 SRS Motorcycle Boot is the most eccentric motorcycle boot of the offroad collection. The graphics and attractive design, together with the wide range of colors, make it easy to combine with the most whimsical outfits, while the high quality of the materials makes it an inseparable companion on adventures. The Sidi Crossfire 3 SRS is identical to the Crossfire 3, but instead features the replaceable SRS Dovetail Sole.