A versatile synthetic stand-alone piece or mid-layer. The LT focuses on breathability and is wearable in many different situations - climbing, skiing or in the city. The durability has been improved by focusing on a more dense construction. The entire jacket is now more breathable. There are two different options - dyed and dope dyed - the latter being more environmentally friendly. The Atom AR is warmer with more insulation. The fleece side panels have been eliminated to allow more synthetic insulation for a warmer jacket.