Features:

• Footshape - Altra'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.
• Vibram® Megagrip - This high-performance sticky rubber offers unparalleled grip on both wet and dry surfaces, rugged longevity, and optimal ground adaptability.
• Balanced Cushioning - Altra's Balanced Cushioning™ platform positions your heel and forefoot at an equal distance from the ground, encouraging better alignment and form.
• TrailClaw™ - These canted lugs on the outsole are strategically placed beneath the metatarsals to provide added traction underfoot.
• InnerFlex™  - These grid-like grooves in the midsole are designed to provide flexibility and movement.

Specifications:

• Upper: Durable, engineered mesh
• Midsole: Compression Molded EVA
• Outsole: Vibram® Megagrip
• Cushion: Max
• Stack Height: 33 mm 
• Drop: 0 mm
• Weight: 12.3 oz / 350 g