Sonic Ultra Running Vest – Women's

Built for high-output mountain runs and fast hikes in brutal heat, the Sonic Ultra Vest is our pick for women who need serious moisture management with almost no weight penalty. Motiv Aero fabric pulls sweat off skin fast and laser-cut vents dump heat at the neck and underarms where you need it most. At 47 grams and sized to work seamlessly under a running pack, it disappears on your back.

• Motiv™ Aero single jersey fabric (85gsm) wicks sweat fast and dries quickly — built for steep, sweaty climbs where cotton and blends fall apart
• Laser-cut vent holes at the back of the neck and underarms release heat exactly where it builds up during hard efforts
• Microactive seams are positioned away from pack straps and high-friction zones, so you can go long without hot spots or chafing
• At 47g (Size 10), this vest pulls pack-ready duty on its own in the heat or as a base layer when you gain elevation and temps drop
• Racerback cut with a slim, low-profile fit and split hem — moves with you without bunching under a hydration vest or pack