Design: Rugged Heinen Terracare® nuckbuck leather upper construction Breathable GORE-TEX® lining for waterproof wear so your feet stay dry Weight: 555 g per shoe In-Shoe Comfort: Moisture-wicking ATC insole for long-lasting wear Double injection DuraPU® midsole for premium cushioning and rebound MONOWRAP® PU frame for premium stability and support Durability & Traction: VIBRAM® Evo outsole for use on tough terrain Hard ATC joint-stabilizer to help you keep your balance