the PWRRUN PB offers an ultra-bouncy ride that makes track workouts a blast while delivering the protection needed to tackle long runs with ease

responsive and durable

the Carbon X2 employs a refined collar shape

Keep It MovingKnit fabric is lightweight to help you move freely and without distractions

Keeps out grit and grime while adding additional security and comfort with enhanced elastic grip construction in quarter sock rib top

Men's Xero HFS II Brand_Tailwind the PWRRUN PB offers anHFS V2 A new take on Xero's most popular minimal running shoe. An evolution of their best selling road running shoe, the HFS V2 is even more comfortable, and more stylish. Light, Grippier, and Comfier Like the original HFS, the HFS V2 is super lightweight (235g, M9) so youll feel like youre flying down the road. And with a new tire tread inspired outsole, youll feel secure even if you go off road.