• FuelCell midsole foam with approximately 3% bio-based content delivers a propulsive feel to help drive you forward. Bio-based content is made from renewable resources to help reduce our carbon footprint.
• Midfoot rubber wraps add increased protection, grip, and durability for rope climbs
• Herringbone rubber outsole design in forefoot and heel provide traction and durability
• Minimus construction combined with premium liners provide sock-free option