Building on the success of the original Pro SL PrimaLoft® Jacket, this updated version has improved breathability and stretch panels for an even better fit.Two different types of PrimaLoft® fill have been used. 80g of PrimaLoft® Gold has been used on the front torso, maximising insulation exactly where you need it most. 60g of PrimaLoft® Gold fill has been used on the sleeves, cutting down on bulk, and 60g of PrimaLoft® Silver Active has been used on the back, giving improved breathability and accommodating some stretch to create a great fitting garment.PrimaLoft® insulation boasts an exceptional warmth-to-weight ratio, tiny pack size, extremely breathable construction and is highly water resistant making it a tremendously versatile performance insulator. Features Lightweight, windproof shell panels with PrimaLoft® Gold insulation Durable water repellent finish Stretch panels on underarm and back for unrestricted movement Triple rear pocket system with zipped security pocket Lightweight internal hem elastic with silicone gripper Ventilation via underarm perforations Subtle reflective details Specifications Gender: Men Age: Adult Feature: DWR Finish Weather Condition: Baltic (Cold), Blustery (Windy) Discipline: Road Collection: Pro SL Fit: Race Fit