For the menswear designer pieces - it's all pretty much Thom Browne dress shirts. There are some items including Ralph Lauren Black Label, Jil Sander, Etro and Kiton but those are all considered sportswear - but it's a bigger discount so no complaints here. Discount wise, based on previous sales, there should be one more markdown where menswear items hit 75% off.
Note: If you're looking for women's damages - check out the damages section in menswear before you head out - there are quite a few pieces floating around, probably leftover from some overzealous hoarder who got carried away before discarding the excess.
My findings co-incide with other Barneys WH sale reports floating around, I'm definitely not a fan of the sale this year. While I did pick up a couple things - I wouldn't necessarily recommend checking out.