Supportive, Comfortable, And Noticeably Lightweight, The Durable Acrux Tr Gtx® Is A Technical Trekking Boot For Multi-day Routes In Challenging Terrain. The Superfabric® Upper Employs A Unique Micro-plated Technology That Is Highly Flexible, Surprisingly Light, And Delivers Outstanding Abrasion Resistance. The Vibram® Megagrip Outsole And Aggressive Lug Geometry Combine For Confident Traction In Wet Or Dry Conditions, And A Gore-tex Insert Delivers Proven Waterproof, Breathable Protection.