Altra Rivera V2 Size:15 Laser-cut ventilation holes across the

Laser-cut ventilation holes across the crown for increased airflow and breathability

Lightweight foam and spongy Cloud units absorb impact

Brooks Glycerin 20 Run Merry

Curved sole design helps runners conserve more energy in each step

Altra Rivera V2 Size:15 Laser-cut ventilation holes across theFeatures: FOOTSHAPEFOOTSHAPEAltra's signature FootShape comfort gives your feet more space to sit naturally and is designed to address biological differences in men's and women's feet. BALANCED CUSHIONINGBALANCED CUSHIONINGOur Balanced Cushioning platform positions your heel and forefoot at an equal distance from the ground, encouraging better alignment, better form, and a low impact landing. ALTRA EGOALTRA EGOAltra's original Altra EGO foam is