Once upon a time, I had thought about commissioning a tweed norfolk jacket. But the good folks at WW Chan won't do one without three fittings. And without a trip to Hong Kong (something that isn't in the cards), that's a laborious process that taxes my impatience. So, I thought, why not a three-piece tweed suit? There's one fabric that I've taken a shine to. It's pattern number 2400 in the John Hardy Alsport book. But the damn thing's 19 oz.! Now, I'm not thinking about a tweed suit as anything I could wear for more than about three months out of the year. But am I going to bake in this? There are some interesting 16 oz. fabrics in the Alsport book and some in the Porter & Harding Glenroyal at about 15 oz. Should I be looking at those instead? As a point of reference, I have another winter three-piece suit, in a 14 oz. Minni's flannel. I can wear it quite comfortably up to the mid 60s (about 18C). I wear it from early-November to mid-March.