Bones Wheels: Double Wides V8 54mm 97A Size:54mm Fine rib knit acrylic -

Fine rib knit acrylic - resistant to pilling and shrink

and breathable protection to keep hands dry in all weather

By utilizing crumple-zone cylinders that crush uniformly on impact

Premium construction featuring carbon stringers and fiberglass

Removable Ear Pads: No

Bones Wheels: Double Wides V8 54mm 97A Size:54mm Fine rib knit acrylic -About X Formula About: The amazing new X Formula (XF) is another industry leading innovation from the BONES WHEELS factory. X Formula rolls over rough terrain like softer wheels do, but slides much like a harder wheel will. Speed: X Formula is extremely fast because it has a super high rebound. X Formula rolls much smoother and faster on all terrains because it absorbs vibration and softens impacts much better than any other wheel in the market. Grip