A curated boutique for girls, tweens & teens

Trend-forward, age-appropriate fashion for every occasion

SHOP NEW ARRIVALS

NEW ARRIVALS

1 9
View all
  • Spring Dresses

    Spring Dresses

    The dresses she’ll reach for on repeat. From everyday favorites to special...

    Spring Dresses

  • Sets

    Sets

    The easiest outfits she’ll wear on repeat. Matching sets that take the...

    Sets

  • Tops

    Tops

    Everyday tops she’ll actually want to wear. From easy tanks and soft...

    Tops

  • Bottoms

    Bottoms

    The pieces that pull every outfit together. From easy shorts and skorts...

    Bottoms

Meet Sunday Best Kids

Curated by a mom and inspired by real besties everywhere, Sunday Best brings you standout styles, trending brands, and that extra bit of confidence every girl deserves. Discover your next main character moment—right here.

FEATURED SHOPS

WHAT WE'RE OBESSED WITH

View all

GIFT SHOP

1 13
View all

Visit Us

14 Forest Avenue

Locust Valley, New York 11560

(516) 247 - 6979

hello@sundaybestkids.com

Store Hours:
Monday: CLOSED
Tuesday: 11am-5pm
Wednesday: 11am-5pm
Thursday: 11am-5pm
Friday: 11am-5pm
Saturday: 11am-5pm
Sunday: 11am-3pm
Directions

What Our Besties Are Saying

⭐️⭐️⭐️⭐️⭐️

“My daughter LOVED her Sunday Best dress! Beautiful quality, and she never wants to take it off.”

— Jennifer, NY


⭐️⭐️⭐️⭐️⭐️

“Super fast shipping and the cutest boutique finds. Every piece feels so special!”

— Melissa, NJ


⭐️⭐️⭐️⭐️⭐️

“We get compliments everywhere we go. Sunday Best is our new go-to for tween style!”

— Ashley, CT


⭐️⭐️⭐️⭐️⭐️

“I was nervous about online sizing, but everything fit perfectly—and customer service is amazing!”

— Laura, NJ


⭐️⭐️⭐️⭐️⭐️

“My picky tween finally found clothes she wants to wear. Thank you, Sunday Best!”

— Brooke, NY


⭐️⭐️⭐️⭐️⭐️

“Obsessed! The quality is way better than big box stores, and shipping was so quick.”

— Michelle, NY


⭐️⭐️⭐️⭐️⭐️

“We’re in London and my daughter is obsessed with her Sunday Best dress. Fast delivery and lovely quality!”

— Emma, UK

FAQs

What ages does Sunday Best carry?

Sunday Best carries clothing and accessories for girls, tweens, and teens, typically ranging from sizes 5–16. Our collections are thoughtfully curated to suit different ages and stages.

Is Sunday Best good for tweens?

Yes — tweens are at the heart of what we do. Our tween collection focuses on trend-forward styles that still feel age-appropriate, comfortable, and confidence-boosting.

Is Sunday Best an online store or a physical boutique?

Sunday Best is both. You can shop online anytime, or visit our boutique in Locust Valley, New York to explore our collections in person.

What types of products do you sell?

We offer a curated mix of girls’, tween, and teen clothing, including everyday outfits, party dresses, accessories, and giftable favorites updated seasonally.

What makes Sunday Best different from big box retailers?

Sunday Best focuses on thoughtfully curated styles you won’t find everywhere. We prioritize quality, fit, and age-appropriate fashion, offering pieces moms trust and girls genuinely love wearing.

How often do you get new arrivals?

New styles are added regularly throughout the season. Our New Arrivals collection is updated often, so there’s always something fresh to discover.