Sport320 is the perfect all purpose mid-layer. Perfect to layer over Bodyfit, Nature or Superfine, its low bulk makes it easy to stow when travelling.Sport320 is your mid-layer for cool to freezing temperatures. It's highly insulating, yet lightweight and low bulk.An Icebreaker classic that's still going strong. First released in the original 1995 Icebreaker collection, this much-loved versatile top is still winning fans around the world. At home in a wide range of environments, from the mountains to the sea.