Men's Montrail Trinity AG II Womens Tops the Ultra 100 is the

the Ultra 100 is the perfect running shoe for ultrarunning races on trails

and effective

plus a more efficient heel-to-toe transition to save energy

Kevlar cord with PVC sheath for enhanced strength and durability

Men's Montrail Trinity AG II Womens Tops the Ultra 100 is theColumbia's pinnacle trail shoe for runners seeking a lightweight responsive experience for racing or fast paced trail adventures. Tested in the wild and validated by Columbia's athletes. Features: Upper: Lightweight Breathable Mesh with asymmetrical lacing Haptic print delivers additional lightweight stability Navic Fit System delivers a natural midfoot lock down Lace webbing system fits securely over your mid foot navicular bone to keep your heel in