I have a 22oz 8 yard that I do not consider heavy. I like it all the time. After all it is open to the air below and just hangs from the waist. I have to say that I have a WPG reproduction Gordon Highlanders in 22oz that I have worn hiking in the warmest (80 - 90 degree F) days and not found it uncomfortable. I have the most comfort issues with sweating from my brow and neck.