• Shop the Zac Posen for Target collection before it hits stores at their 24-hour pop-up party. Alt-girl band The Like will perform and there will be D.J. sets throughout the day. 481 Eighth Ave., at 34th St.;4/15 and 4/16, 11 p.m..
• Fedoras, capelines, cloches, and cowboy hats are more than 50 percent off at Selima Hats. All styles are $150 (originally $340). Through 4/17. 7 Bond St., nr. Broadway (212-677-8487); F–S (11–7).
• Menswear, womenswear, denim, outerwear, and accessories are 50 to 80 percent off at the Rock & Republic warehouse sale. Through 4/18. Metropolitan Pavilion, 123 W. 18th St., nr. Sixth Ave., fourth fl.; F (4–9), S–Su (9–7).
• Find deep discounts at the Julie Haus sample sale. Tops are $20 to $95, pants are $25 to $105, dresses are $45 to $250, and jackets are $50 to $300. 39 W. 38th St., nr. Sixth Ave., sixth fl.; T–F (10–8).
• Jewelry by Lee Angel is up to 75 percent off; there will also be a $5 bin. 524 Broadway, at Spring St., sixth fl. (212-334-6573); W–F (10–5).
• Accessories are 50 percent off and apparel is 75 to 80 percent off at the Betsey Johnson sample sale. Millennium Broadway Hotel, 145 W. 44th St., nr. Sixth Ave., sixth fl. (212-993-9251); W–F (10–10).
• Suits, sportswear, shirts, ties, and men's and women's shoes and accessories are discounted at the Hugo Boss sample sale. 601 W. 26th St., nr. Eleventh Ave., eighth fl.; W–Th (10-5), F (10-1).