H&M
Visit hm.com for store locations.
This Swedish label puts a Euro spin on fashion, at rock-bottom prices. You’ll find a variety of day-to-evening duds for the most discerning teens. It’s also a terrific source for knock-offs of the trendy accessories that your tween will refuse to wear next year. Classic cardigans ($14.90–$24.90) and pleated skirts ($14.90–$19.90) mix with higher-end items like kids’ tweed checked coats ($49.90).

Infinity
1116 Madison Ave., at 83rd St.
212-517-4232
If it’s the thing of the moment with the preteen private-school set, it’s here. Hot items include Juicy, Miss Sixty jeans, Triple 5 Soul T-shirts ($30–$50), and suede Ugg jackets ($155).

L.L. Bean
800-809-7057
llbean.com
On the legendary Maine retailer’s Website, developing preppies find enough classic fleece pullovers ($29.50), sherpa-lined jean jackets ($39.50), rugby shirts ($24), Double L twill carpenter pants ($22), and Mountain Comfort Mocs ($29.50) to outfit all of Cape Cod.

Macy’s
151 W. 34th St.
212-695-4400
macys.com
The junior department on the fourth floor is stocked with Polo, cK, Levi’s, and every other mainstream brand (jeans are $45 to $125). Girls can also mess around at their own M.A.C counter.

Marsha D.D.
1574 Third Ave., near 89th St.
212-831-2422
This private-school favorite has Monkeywear dresses ($75 to $200) and flip-flops ($22) in tons of colors, plus scores of designer tees ($20–$70) and the entire Paul Frank collection ($10–$70). D.D. knows what boys love, too: Fossil watches ($45–$80), mesh basketball shorts ($26), and Adidas track pants ($26–$40).

Mavi Jeans Art
832 Broadway, near 12th St.
212-625-9454
mavi.com
For that painted-on jeans fit, look no further than this bi-level Turkish denim emporium at Union Square, which features 32 different styles for girls and 16 for guys ($68 to $100), in various washes and fabrics. This year’s popular cuts are the Marco (five-pocket low-waist straight-leg), the Leslie (low-rise with Western-style pocket detail), and the Romy (exaggerated front and back pockets).

NBA Store
666 Fifth Ave., near 52nd St.
212-515-6221
nbastore.com
While guys find their heroes’ jerseys, ladies can chase their own hoop dreams with the new “nba4her” line. Worn by Eve and Mariah Carey, this collection includes Michael Jordan jerseys in three color schemes (around $75) and USA Basketball jerseys for the Summer Olympics, redesigned this year for a trendy retro look ($75).

Niketown
6 E. 57th St., near Fifth Ave.
212-891-6453
niketown.com
The famed Nike swoosh is everywhere you look in this much-ballyhooed store. Beyond tons of sneaker and sandal styles, teens love the Presto Cee analog ($59) and Triax Junior ($39) timepieces, as well as the Nike Varsity Air Backpack ($40–$50), emblazoned with the ubiquitous swoosh, naturally.

Old Navy
Call 800-OLD-NAVY for store locations
oldnavy.com
Thrifty parents pounce on the casual seasonal threads, shoes, and accessories for all shapes and sizes here—and still have plenty left over for the college fund. Tweed blazers for girls ($24.50) will be fashionable this fall, while wrinkle-free khakis ($19.50), short-sleeve button-downs ($14.50), and ringer tees ($6.50) keep things casual.

Olive & Bette’s
1070 Madison Ave., near 81st St.
212-717-9655
158 Spring St., near W. Broadway
646-613-8772
252 Columbus Ave., near 72nd St.
212-579-2178
oliveandbettes.com
Trendy staples for girls of all ages, from precocious preteens to adults: Tamara Henriques stand-out “Wellies” boots ($118), cashmere sweaters by Autumn Cashmere ($250 to $350), and Theory sportswear separates ($95 to $300). A Bleecker Street location, opening this August, will be the largest yet.