The clothes at this classic American haberdasher are, as ever, traditional, comfortable, and fairly priced. A modernizing trend has resulted not only in slightly modified styles, but also in a foray into digital tailoring. At the Madison Avenue store, you can step into a computer scanner to get precisely measured for a custom shirt or suit. Summer seersucker, navy blue blazers, and the peerless oxford shirts have been staples for generations. The women's selection has variations thereof. Subway: E, V to 5th Ave./53rd St. Other locations: 346 Madison Ave., at E. 44th St., Midtown East, PHONE: 212/682-8800; Subway: S, 4, 5, 6, 7 to 42nd St./Grand Central. 1 Church St., at Liberty St., Lower Manhattan, PHONE: 212/267-2400; Subway: R, W to Cortlandt St.