Peak Performance Helium Hybrid Jackets: Peak Performance presents the Helium Hybrid Jacket, these lightweight Jackets are easily packed & offer breathable stretch comfort, stretchable jersey side/arm & shoulder panels have been incorporated to flow naturally with your swing. The Jackets incorporate 90/10 Duck Down quilted insulation to the torso/back & rear arm panels, Duck Down insulation produces intense warmth & even though the Jackets are quilted they are easily stowed in a golf bag attire compartment.