What: Vivienne Tam
When: 5/18-20; Wed., 10 a.m.-8 p.m.; Thurs., 10 a.m.-7 p.m.; Fri., 10 a.m.-6 p.m.
Where: 550 Seventh Avenue, between 39th and 40th Streets, twentieth floor (212-840-6470).
Why: Flirty frocks are $30 to $398.

What: Twinkle
When: 5/20-21; Fri., 10 a.m.-8 p.m.; Sat., 11 a.m.-5 p.m.
Where: 401 Washington Street, at Laight Street, suite 4C.
Why: Charm necklaces, were $72-$172, now $45; lightweight sweaters, were $198-$325, now $65; tops, were $198-$325, now $70; dresses, were $300-$440, now $105.

What: Steven Alan
When: 5/19-21; Thurs. & Fri., 8:30 a.m.-8 p.m.; Sat., noon-7 p.m.
Where: 87 Franklin Street, between Broadway and Church Street, ground floor (212-219-3305).
Why: Up to 75 percent off items from Botkier, Rachel Comey, Indigo People, Inhabit, Gauge, Park Vogel, Prudence, Veena, Wrangler 47, and others.

What: Eberjey
When: 5/23-24; Mon. & Tues., 9 a.m.-7 p.m.
Where: 40 East 34th Street, between Park and Madison Avenues, suite 610 (212-696-5393).
Why: Adorable skivvies, camis, loungewear, and swimwear are 50 to 75 percent off.

What: Rebecca Taylor and Leigh Bantivoglio
When: 5/18-19; Wed. & Thurs., 10 a.m.-7 p.m.
Where: 336 West 37th Street, between Eighth and Ninth Avenues, loft 11 (212-420-9994).
Why: Rebecca Taylor dresses, were $350, now $100; tops, were $195, now $80; skirts, were $240, now $70; Leigh Bantivoglio silk chemises, were $175-$225, now $85; silk camis, were $165-$195, now $65; boy shorts, were $50-$85, now $10-$25.

What: Rogan
When: Through 5/22; Mon.-Fri., 10 a.m.-7 p.m.; Sat. & Sun., 11 a.m.-6 p.m.
Where: 91 Franklin Street, between Broadway and Church Street, ground floor (212-680-1407).
Why: Ultra-cool stock for men and women priced below wholesale.

What: Lulu Guinness, Cath Kidston, and Tibi
When: 5/18-20; Wed.-Fri., 10 a.m.-5 p.m.
Where: 230 West 39th Street, between Seventh and Eighth Avenues, sixteenth floor (212-302-4564).
Why: Lulu Guinness evening bags, were $295, now $150; beach totes, were $250, now $125. Cath Kidston weekend bags, were $225, now $50; oven mitts, were $25, now $8. Tibi dresses, were $325, now $130; tops, were $200, now $80.

What: Central Park West Cashmere
When: 5/18-20; Wed.-Thurs., 9 a.m.-6 p.m.; Fri., 9 a.m.-5 p.m.
Where: 234 West 39th Street, between Seventh and Eighth Avenues, fifth floor (212-840-5041).
Why: Cashmere sweaters, shrugs, and cardigans are $24 to $60.

What: Colette Malouf
When: 5/18-19; Wed. & Thurs., 11 a.m.-8 p.m.
Where: 594 Broadway, between Houston and Prince Streets, suite 1214.
Why: Beaded necklaces, were $120, now $30-$40; glass-adorned ponytail holders, were $80, now $15-$25; leather headbands, were $80, now $10-$35.

What: Staff International
When: 5/24-25; Tues. & Wed., 10 a.m.-7 p.m.
Where: 495 Broadway, between Spring and Broome Streets, eighth floor (646-613-8457).
Why: Up to 60 percent off hipster gear for men and women by Dsquared, Martin Margiela, Diesel, and Diesel Style Lab.