What Our Gearhead® Experts Are Saying: “On long rides with variable weather, this vest has become a must-bring layer for me. The Breaker front panel takes the sting out of descents, while the Ventamesh back keeps me from overheating on climbs. It disappears into a pocket, weighs almost nothing, and the new armhole elastic finally stops that annoying shoulder rub. It’s the kind of piece you forget you’re wearing—until the wind hits.” We love how the Assos UMA GT Wind Vest S11 turns unpredictable weather into smooth, controlled miles. Built for endurance riders who crave low bulk and high performance, this ultralight gilet pairs a windproof Breaker front with a breathable Ventamesh back, giving us protection where we need it and airflow where it counts. It wraps effortlessly around the torso thanks to soft, elastic side inserts that eliminate flapping and rustle—even on fast descents. Updated armhole elastic improves mobility and prevents overlap with jersey seams, making the vest feel seamless over our go-to layers. When the sun breaks through, its 56-gram design packs down to a barely noticeable bundle that disappears into a rear pocket. For alpine starts, blustery ridgelines, and cool-down spins home, this vest brings lightweight confidence to every ride.