Why Icebreaker in summer? Icebreaker Superfine has ‘cool wool’ qualities. It stays cool in the heat and insulates when it’s cold. It does this because it’s very light, highly breathable so you don’t feel clammy, and has a looser fit than Icebreaker Skin or Bodyfit. Superfine packs really small and also has a UV protection factor. Icebreaker is great for travel. Travel is all about change and Icebreaker garments respond to climate change – moving from place to place or from hot days to cool nights. It’s perfect for the plane journey and wherever you land you can wear it longer between washes (1-2 weeks is not unusual). Icebreaker means fewer pieces doing more.