Designed to support efficient movement and equipment access, the 5.11 Tactical Men's A/T 8" Side-Zip Boots combines dependable 5.11 construction with practical performance for its intended role. This 5.11 A/T 8" Side Zip is a performance boot built from the sole up to increase performance. The All Terrain Load Assistance System (A.T.L.A.S.) is a force multiplier for those who carry heavy weight on long shifts. Key details include why You'll Love It, while a.T.L.A.S. Support System P Purpose-built internal support technology distributes load to help minimize fatigue.