I've had a Musto Technical Tweed coat for a decade and worn it quite happily for roughshooting, driven shoots, wildfowling (only once, because cleaning it afterwards was a nightmare), stalking or just when it's cold. It's very warm, breathable, waterproof, comfortable, plenty of pockets, excellent quality. The fabric resists thorns and abrasion. I'm going to wear it chamois stalking in a fortnight. Admittedly it isn't ideal for that, as it wasn't for wildfowling, but it certainly does the job. It's heavy, I'll grant you that, especially with pockets full of stuff, but you don't notice the weight distributed like that when you're wearing it. I don't think it would be my first choice of dedicated stalking coat, but given that it does the job just fine and that it absolutely refuses to fall apart, I'm sticking with it.