Showcasing its love for traditional military garb, Uniform Bridge uses the OG M51 silhouette for these pants. They’re made from nylon with loose legs and an adjustable toggle waist, while large cargo pockets provide practical storage on the go.100% Nylon, Toggle Waist, Zip Fly, 4 Front Pockets, Back Pocket. Uniform Bridge Men's Nylon M51 Pant in Black, Size Large | END. Clothing