"What Our Gearhead® Experts Are Saying:""I wore the Nybo Pullover Jacket through a full block of cold-weather training, and the back stretch panel made a real difference on hard efforts where I needed a full range of motion without losing any warmth. The reflective details are well-placed enough that I felt genuinely visible on early morning runs when the light was still low.""The Swix Nybo Pullover Jacket is built for athletes who train through winter rather than around it, combining a wind-resistant 30D polyester shell with stretch fleece inserts that move freely and manage heat during high-output efforts in cold conditions. The back stretch panel keeps thermoregulation and freedom of movement working together rather than against each other, and reflective details keep you visible when the early morning or evening light is working against you."