When you want a warm, sleek, breathable jacket for running day or night in cool conditions, the Women's Quantum Long Sleeve Zip Hoodie delivers maximum comfort and mobility. Crafted for movement with raglan sleeves and underarm gussets, the Quantum Hoodie also has breathable eyelet mesh panels for comfort when you generate maximum energy. Reflective details aid visibility for running at night, and a fitted hood adds warmth when you need it without added fabric. And the warm, midweight 260gm merino terry also makes Quantum a great midlayer for ski touring, climbing in the mountains, or any active sport in cool to cold weather. And with merino's natural odor resistance, you can wear it day after day, sport after sport, between washings. FIT: Slim  BENEFITS: Warm, comfortable, odor resistant, breathable FEATURES: Mesh underarm for maximum breathability, reflective center zip, shaped hood for warmth and protection, secure zippered chest pocket with media cord port, secure zippered front hand pockets, drop tail hem for added coverage FABRIC AND CARE FABRIC WEIGHT: 260 Midweight  FABRIC: Body: 98% Merino Wool, 2% LYCRA® Eyelet: 98% Merino Wool, 2%