Topo Athletic | Ultrafly 5 | Men's | Dark Grey/Grey Running 1/2 Zip 86% Acrylic/Acrylique 13% Polyester 1%

86% Acrylic/Acrylique 13% Polyester 1% Wool/Laine

Dye and fragrance free formula leaves no residue where bacteria can live

Its medium-weight insulation makes it ideal as a standalone vest during cool fall days or as a mid-layer under a jacket when temperatures drop

designed for ultimate comfort and performance on every journey

Topo Athletic | Ultrafly 5 | Men's | Dark Grey/Grey Running 1/2 Zip 86% Acrylic/Acrylique 13% Polyester 1%MORE COLORS Introducing the Topo Ultrafly 5 your ultimate daily running companion designed for comfort and light pronation support. With a spacious toe box and a natural ride, this latest version features an updated ZipFoam midsole that is softer, lighter, and more responsive. The increased stack height, now with an additional 2mm of foam, enhances cushioning without adding extra weight. The dual density midsole, equipped with a built in medial post,