Oxxford is currently thought of as the best men's suit maker in the US today. I have one of their jackets and although it doesn't fit me, the construction is very sturdy from the shoulders down. There is even a thread that goes across the back of the right lapel so when you place a flower in your lapel button hole you can place the stem through the thread to keep the flower standing. Lots of little details in the creation of the lapels trousers and sleaves that many companies believe are a waste of money
I ran into the owner of Oxxford about 2 years ago at a trunk show in Beverly Hills and must say the suit was very ill fitting. I am not a fan of the cut on most of their suits, though if they can get the design right then the construction would be next to perfect. They still need to start making suits with Skeleton linings like they were sold back in the 30's and 40's.
The standard make of an Oxxford suit jacket is 3/4 lined. It's a nice touch but to me it harks back to when suits started getting cheaper and the tailors did away with taping the seams over with liner material (skeleton lining)
Back in the 20's 30's and 40's Brooks Brothers used to stack their suit jackets several layers high on tables. They would have them folded inside out so you could see the maticulous work that went into the construction of the garment, and the skeleton lining that takes extra time and extra detail to create when compared to a fully lined suit that covers up the construction.
For refference, here is a vintage skeleton lining.