Engineered for technical versatility and thermal efficiency, this REI Co-op hybrid jacket is an essential mid-layer designed for high-output mountain pursuits. The upper chest and shoulders feature durable, wind-resistant nylon panels with strategic low-profile insulation to shield your core from chilly gusts. The lower body and sleeves utilize a premium, moisture-wicking grid fleece with 9% spandex for unrestricted four-way stretch and optimal breathability. Highly packable and structurally resilient, this multi-textured athletic piece seamlessly integrates into a sustainable, high-performance capsule wardrobe for hiking, trail running, or cool-weather travel.