Spenco Propel + Carbon Performance Insole drymax Eco-friendly yarn made from recycled

Eco-friendly yarn made from recycled plastic bottles

this sock delivers race-proven protection even in the harshest conditions

the Drymax Cold Weather Crew sock delivers warmth without bulk

Moisture-wicking fibers help eliminate friction and prevent blisters

and irritation-free

Spenco Propel + Carbon Performance Insole drymax Eco-friendly yarn made from recycledSpenco Propel + Carbon Performance Insoles deliver explosiveness with each foot strike. Turn your everyday trainer into an elite race ready shoe with the Spenco Propel + Carbon insole. Designed by biomechanical experts, this insole features a carbon plate for explosiveness with each foot strike and INergy Foam for next level energy efficiency. Features Carbon Plate provides forward propulsion and explosiveness with each foot strike Responsive INergy