LIGHTWEIGHT 1/2 ZIP JUMPERDetails This lightweight jersey is manufactured using whole garment technology so no side or arm seams for the ultimate in comfort. Add this feature to the traditional raglan shoulder, a quarter zip and rib on the top of the sleeves and you get a perfect fit! The hollow core possum fibre traps warmth next to your body, and is blended with merino wool for moisture management, along with the bonus of silk for a luxurious feel comparable to cashmere.