Made with a special two-layer soft jersey knit, these thermal base layer pants are sure to keep you warm when you need it most. The unique double layer construction of these men's long john pants traps warm air between the two layers for excellent thermal retention, while the special Chillys seasonings provide additional moisture management to wick away the damp, keeping you dry. Pepper Bi-Ply is a tried-and-true favorite choice for comfort while protecting against the cold. These thermal base layer pants are a relaxed fit product that work well under regular pants and jeans. These warm thermal pants also have a front fly. Features of these men's long john pants: Plush-back elastic waistband Gusset eases movement and reduces seam bulk Fly front MTF Moisture Transfer Fibers for moisture management Spun polyester is slightly brushed for extra softness Double layer traps air between layers for extra warmth Flat seam construction for seam strength and longevity Versatile for sports or everyday warmth needs Midweight warmth, relaxed fit