Bones Wheels - SPF Pool & The Gang - 81B Size:54mm robust trekking trousers with great

robust trekking trousers with great ventilation in G-1000 for year-round trekking

Biax Fiberglass: A dual-direction

KPU 3D Grid exoskeleton and mesh uppers provide structure and breathability

• 100% Acrylic

Bones Wheels - SPF Pool & The Gang - 81B Size:54mm robust trekking trousers with greatSkatepark Formula (SPF) is very high quality urethane specifically formulated to resist flatspotting on slick or smooth surfaces while maintaining a higher rebound for a quicker response and a faster roll. Skatepark Formula has a high resistance to abrasion while not compromising hardness and slide ability. Simply put Skatepark Formula wheels grip better on slick surfaces, are almost impossible to flatspot, and are the fastest, longest lasting wheel