The Thermalrunner Hybrid Insulated Jogger is our extreme cold-weather jogger, with targeted insulation panels and a full-leg stretch gusset for a fit that feels like a cross between a legging and a pant. It has a tapered jogger fit, an elastic waistband, and fleece-lined hand pockets for when your fingers need a break from the cold. There&';s insulation where you feel cold the most, across the front and seat. It&';s an ultralight 25gsm synthetic batting, a continuous layer of insulation rather than loose fill, so you get the warmth you need without the weight or overheating. The outside of each panel is a smooth, water-resistant stretch nylon that doesn&';t have a distracting swish with every step, and the inside is a soft mesh fleece. Wear it on its own, or pull it over a tight or short when the temperature really drops. Targeted panels of our Atlas fabric add serious durability and plenty of room to move. Features 3 zip pockets: hand pockets and a bounce-proof back zip pocket Insulated front & back panels Bungee loop and S-Biner clip in right hand pocket Full-leg stretch gusset Articulated tapered fit External drawcord Materials + Specs Atlas: 77% recycled nylon + 23% spandex Fleece lining: 100% recycled polyester Inseam: 30in/77.4cm Best in: -150 F to 100 F Sustainability bluesignA(R) fabric OEKO-TEXA(R) fabric PFC-Free C0 DWR Made from partially recycled materials