The Men's 5.11 Tactical A/T 8” Arid Boots are performance boots 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 treks. The boots were developed to work with your "work weight". Constructed from nylon for high abrasion and a durable suede upper this boot will carry you through your adventure wherever it may take you.