Mizuno Breath Thermo Racer Mid Running Sock Size:Medium Meets New Balance’s green leaf

Meets New Balance’s green leaf standard: upper is made of 50% or more recycled content

which helps reduce digging

the peregrine ICE+ provides protection and a firm grip on winter conditions

Style #: W880v13

Shell: Polyester 4-way stretch

Mizuno Breath Thermo Racer Mid Running Sock Size:Medium Meets New Balance’s green leafThe BT Racer Sock is a mid length sock for your coldest runs, made with our heat generating Breath Thermo technology, this lightweight sock boasts all the warmth you need without the bulk. TECHNICAL DETAILS BREATH THERMO: Mizuno's exclusive thermal fabric technology that uses escaping body vapor to generate heat. DRYLITE: Using a dual filament yarn construction to transport excess moisture away from the body to create a comfortable and dry body