Altra have partnered with MATRYX® to design a one-piece woven upper that’s lightweight and protective

thereby allowing even distribution of tension and breathing is therefore uninhibited

Stay-Dry Support  Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation

Soft handed heather knit allows for superior comfort

6 detachable spike pins deliver optimal grip

Mens Asics Sonicblast Nutrition Altra have partnered with MATRYX®Featuring a two layered foam cushioning in the midsole, the SONICBLAST shoe provides a lightweight, bouncy and responsive ride during tempo runs, workouts and races. This boosted trainer includes a more stable heel and more flexible forefoot transition compared to other plated models, making it a more accessible option to many runners. The midsole features a two layered foam with FF BLAST MAX and FF TURBO cushioning to help create a lightweight,