This occurred to me as a tangential point in the "Summer Wedding" thread-- to which I still wouldn't wear a black suit, BTW. Anyway, how adventurous do y'all get when mixing fabrics for jackets/trousers? Â Crisp mohair jackets and baggy linen trousers would seem to be a mismatch, but does it work better in the reverse? Â Estate tweed jackets and tropical-weight trousers are likely not going to work, but how about a rough tweed over flannels? Â Serge blazer over flannels? Â Soft flannel blazer over crisp twills? How much contrast is too much, and have you ever found that you wish you'd had more of it-- i.e., not been so anal about matching one texture with the other? Are there rules for making this simpler, and when are they profitably bent or broken? Anyone had a pleasant surprise on something that shouldn't have worked, but did?