Rule #1 in the field: never give away the advantage. That's why the Burton Tactic pant comes prepared with 2-layers of socially responsible bluesign approved DRYRIDE Durashell fabric, rated with 10K waterproofing and reinforced with fully taped waterproof seams. But the real secret-weapon in this tactical trousers comes in the form of YKK matte water-resistant zippers, which keep out the elements when you're swimming through the Storm of the century. The premium styling of our most popular mid fit allows total mobility without being overly baggy; a stacked list of standard features includes microfleece-lined pockets and waist, expandable cuffs for a custom fit, and cuff elevators to protect from abrasion. Fabric Type: Insulation: 100% Polyester/Lining: 100% Nylon/Membrane: 100% Polyurethane/Shell: 100% Nylon.