DS likes a classic preppy style I guess (doesn't even know what he likes), wears smart casual to work, and he is 6'5 and an average build, he doesn't work out but he is definitely not lanky, He needs clothes that fit long in the body.
I've suggested Timberland, Gant and Hilfiger even though they aren't my taste and are a bit pricey as they seem to fit. Can anyone help with any more high street stores recommendations that might fit and are not M&S?