Packable, Lightweight Core Body Insulation Design Philosophy:.-The original Pro SL PrimaLoft® Gilet was a game changer, bringing technical hollow fill insulation to the performance cycling market in the form of a versatile, packable gilet.The updated version, the Pro SL PrimaLoft® Gilet II, is even better with improved breathability, stretch and an updated, contemporary design.Lightweight Insulation:.-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® Silver Active has been used on the back, giving improved breathability and accomodating some stretch to create a great fitting garment.PrimaLoft® Insulation:.-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.-PFC.-Free, non.-toxic durable water repellent finish.-Stretch insulated back for unrestricted movement.-Triple rear pocket system with zipped security pocket.-Lightweight internal hem elastic with silicone gripper.-Subtle reflective details.Specifications:.-Material:Elastane 5%, Polyester 35%, Nylon 60%