Fit & Design: Regular fit pants Offers breathability for low to medium-intensity activities Articulated knees Vents enhance breathability during more intense activity Microfleece stretch panels at seat and knees Mesh-lined, no-snag thigh vents Anti-scuff cuffs with hook-and-loop cuff elevators Water-resistant boot gaiter External hook-and-loop waistband adjustment Belt-loop ticket O-ring Zippered hand-warmer and cargo pockets Hand-warmer back pockets with hook-and-loop closure Room-to-Grow system extends the length of the legs by 1.5 Technology: DRYRIDE(R) two-layer fabric is highly breathable, waterproof, and quick-drying ThermacoreECO insulation is lightweight and breathable, providing a super-comfortable feel and low-bulk warmth that cranks the heat and dries quickly PFC-free DWR coating maintains premium water-repellent performance, while reducing the harmful environmental impacts of conventional Durable Water Repellent chemicals Additional Details: Bluesign(R) approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing