The Castelli Alpha 150 Jacket is a performance-oriented cycling jacket engineered to provide warmth, wind protection, and versatile comfort for cool to cold weather rides. Designed for riders who demand dependable performance on brisk mornings, transitional seasons, or variable conditions, the Alpha 150 blends protective fabric and ergonomic cycling fit to help you stay comfortable and confident when temperatures drop and the wind picks up.
Constructed with Castelli’s wind-blocking fabric, the Alpha 150 Jacket resists chill while allowing breathable moisture transfer, helping you maintain balanced body temperature during sustained efforts. The stretch panels ensure unrestricted movement through the pedal stroke and reduce bulk when layering over jerseys or base layers. Its articulated design follows the rider’s position on the bike, minimizing drag and maximizing aerodynamic efficiency without restricting mobility on climbs, flats, or descents.
Functional details enhance the everyday ride experience. A full-length zipper allows easy ventilation control when your effort increases, and a protective storm flap helps block drafts along the zipper line. Rear pockets provide secure storage for ride essentials such as nutrition, tools, or gloves, keeping them within reach without interfering with your riding position. Reflective accents offer increased visibility in low light, adding a safety element for early starts or twilight finishes.
Lightweight yet protective, the Alpha 150 Jacket packs down easily for stowage in a jersey pocket or saddle bag when conditions improve. Its balance of wind protection, breathability, and stretch comfort makes it a versatile outer layer for cool training rides, weekend adventures, or long endurance efforts where weather conditions are unpredictable. Whether you’re extending your riding season or tackling early-morning chill, the Castelli Alpha 150 Jacket delivers reliable comfort and performance where you need it most.
