5.11 Tactical A/T 8in Side Zip Boot - Mens Black 8.5W. 11 A/T 8in Side Zip Boot - Men's features a patented platform system the All Terrain Load Assistance System that redistributes body weight from the major joints to the tendons and muscles in the feet. This system allows the boot to "work" or "pull" you through each step allowing you to walk much longer distances or carry much heavier weight. The high abrasion air mesh and leather upper coupled with a waterproof breathable finish and a polishable toe ensures that the 5.11 Tactical Side Zip Tactical Boots are comfortable as well as long-lasting. The All Terrain Load Assistance System in this 5.11 Boot is a "force multiplier" for those who carry heavy weight on long shifts. The boots were developed to work with your work weight. The 5.11 A/T 8in Side Zip Men's Boot includes a leather and nylon with high abrasion air mesh upper a water resistant leather upper and an abrasion resistant sole for the ultimate confident stance in any environment. For an amazing way to make sure your feet are happy and healthy all day long choose the 5.11 Tactical Side Zip 8in Boots. Specifications for 5.11 Tactical A/T 8in Side Zip Boot - Mens: Manufacturer: 5.11 Tactical Gender: Male Age Group: Adults Boot Shaft Height: 8 in Boot Style: Tactical Boot Apparel Fit: Regular Color: Black Toe Type: Polishable Toe Activity: Tactical Footwear Closure: Side Zipper Water Resistance Level: Water Resistant Footwear Upper Fabric/Material: Leather Upper/High Abrasion Air Mesh Nylon Package Contents: 5.11 Tactical A/T 8in Side Zip Boot - Mens 5.11 Tactical 12431-019-8.5-W: A/T 8in Side Zip Boot - Mens Black 8.5W