Merrell Axis 2 Walking Shoes Strobel Construction - Offers flexibility and ultimate comfort. Full Grain Leather & Mesh Upper - For a strong and flexible frame, providing both breathability and durability. Protective Rubber Rand & Toe Cap - For protection in rugged terrain. Bellows Tongue - Protection from mud and debris from getting inside the shoe. Breathable Mesh Lining - Treated with Aegis antimicrobial solution resists odour.