Altra 5

Men's, Neutral, Altra Olympus, Trail running, Track running, 37, 38, 38.5, 40, 40.5, 41, 41.5, 42, 42.5, 43, 43.5, 44, 44.5, 45, 46, 46.5, 47, 48, 49

Women's, Standard, Gore-Tex, Waterproof, High shaft (above the ankle), Leather, Mesh, Synthetic, Fabric/Textile

Women's, Neutral, Trail running, Waterproof, Midfoot bridge, Made from recycled material, 36, 37, 37.5, 38, 38.5, 39, 40, 40.5, 41, 42, 42.5, 43, 44, 44.5, 46

Men's, 37, 38, 39.5, 40, 40.5, 41, 41.5, 42, 42.5, 43, 44, 44.5, 45, 46, 46.5, 47, 48

Men's, Standard, Gore-Tex, Waterproof, High shaft (above the ankle)

Men's, Standard, Gore-Tex, Waterproof, High shaft (above the ankle), Leather, Mesh, Synthetic, Fabric/Textile

Women's, Standard, Gore-Tex, Waterproof, High shaft (above the ankle)

Women's, Neutral, Waterproof, Altra Olympus, Trail running, Track running, 36, 37, 37.5, 38, 38.5, 39, 39.5, 40, 40.5, 41, 41.5, 42, 42.5, 43, 44, 44.5, 45, 46, 46.5, 47, 48

Women's, Waterproof, Winter running, 36, 37, 37.5, 38, 38.5, 39, 40, 40.5, 41, 42, 42.5, 43, 46.5

Men's, Neutral, Trail running, Waterproof, Midfoot bridge, Made from recycled material, 37, 38, 38.5, 39, 40, 40.5, 41, 42, 42.5, 43, 44, 44.5, 45, 46, 46.5, 47, 48, 49, 50

Women's, Waterproof, 36, 37, 37.5, 38, 38.5, 39, 40, 40.5, 41, 42, 42.5, 43, 44.5, 46, 46.5, 47, 48

Women's, Trail running, 36, 37, 37.5, 38, 38.5, 39, 40, 40.5, 41, 42, 42.5, 43, 44, 44.5, 46.5