220 W 19th St between Seventh and Eighth Aves, tenth floor. Subway: 1 to 18th St. Grab this high-end showroom’s garb for both sexes at wholesale-and-below prices. Men will find Dsquared2 wool cardigans for $300 (were $800) and Maison Martin Margiela leather sneakers, lowered from $800 to $320. Ladies will love Dsquared2 plaid coats marked $680 (retail $1,700) and Maison Martin Margiela wool sweaters, pared from $950 to $370.