Danner Men's Kinetic 8" Side Zipper Waterproof Duty Boot - Black - 28012 IndustryBrewery and that mass is doing

and that mass is doing structural work on rough ground

The Vicious 8" Composite Toe (13868) is the same boot without the 400G Thinsulate

Cement Construction & Rubber Outsole — A bonded sole that keeps the boot light and flexible

On a boot worn daily on abrasive ground

Danner Men's Kinetic 8" Side Zipper Waterproof Duty Boot - Black - 28012 IndustryBrewery and that mass is doingIt Takes Speed and Strength to Serve and Protect Take Danner's toughest full grain leather and ripstop nylon, add a polyurethane footbed and a deeply cushioned midsole, and you've got the Kinetic. This side zip version adds a convenient semi locking zipper for even faster on and off built with the same lightweight, agile platform. Key Features of the Danner Kinetic Side Zip 8" 28012 Semi Locking Side Zipper: Get in and out of your boots faster. It