Arc'teryx Atom LT Hoody Features:
Arc'teryx's versatile Atom LT Hoody offers the perfect combination of insulation and breathability. This active wear jacket has synthetic Coreloft in the body, arms and hood to provide lightweight insulation and Power Stretch fleece side panels for venting during high output activities. Its trim design lets the Arc'teryx Atom LT Hoody be worn easily beneath a shell on cool, wet days or it can be worn on its own in dry conditions.
Great jacket as a mid layer when the temperature dips below 5 degrees - too warm to hear hiking above 5 degrees. My guess is its good for up to -5 degrees while walking - but the winter this year is so mild I've not been able to test this theory!
The jacket fits nicely - small works well for my 37/38 inch chest. In Rab and Hagloffs I'm a medium.
The warm winter so far means I've not got to wear it as much as I was hoping - fingers crossed for a cold January!