Whatever your pace on the trail, Marmot's Frequency Hybrid Jacket is designed to keep you comfortable. The front panel of wind-resistant nylon lined with Polartec High Efficiency Fleece protects and wicks to keep you dry, while stretch knit panels at the back and sleeves keep you moving freely. Front body: Lightweight nylon for wind protection. Body lining: Polartec High Efficiency Fleece Grid fabric for superior wicking action, breathable comfort, fast drying, and next-to-skin softness. Back and sleeve panels: Stretch knit for increased mobility and breathable comfort. Drop-tail hem for increased coverage. Raglan sleeves for comfort and increased range of motion. Thumbholes for ease of layering and hand warmth. Wind flap for added protection from the elements. Zippered handwarmer pockets. Reflectivity for safety. Flatlock stitching for nonchafing comfort. Center-back length: 26.5 in. Athletic fit