A curated boutique for girls, tweens & teens

Trend-forward, age-appropriate fashion for every occasion

SHOP NEW ARRIVALS

NEW ARRIVALS

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Shop our most loved styles - From party dresses to cozy lounge sets and everyday favorites.

The Sale Edit

Sunday Best is pleased to offer an additional 20% off select sale styles (limited styles left). The discount is automatically applied at checkout to eligible sale items. Offer valid on sale styles only; exclusions may apply. Discount cannot be combined with other offers or applied to previous purchases. Gift cards are excluded. Offer is valid online only. All sale styles are final sale and are not eligible for return or exchange. Pricing, availability, and terms are subject to change.

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Shop Her Favorites

The Dress Edit

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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.

COZY SHOP

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*Sunday Best is pleased to offer an additional 20% off select sale styles from Saturday, January 3, 2026 through Monday, January 26, 2026. The discount is automatically applied at checkout to eligible sale items. Offer valid on sale styles only; exclusions may apply. Discount cannot be combined with other offers or applied to previous purchases. Gift cards are excluded. Offer is valid online only. All sale styles are final sale and are not eligible for return or exchange. Pricing, availability, and terms are subject to change.

Besuchen Sie uns

14 Waldallee

Locust Valley, New York 11560

(516) 247 - 6979

Öffnungszeiten im Sommer:
Montag: GESCHLOSSEN
Dienstag: 11–16 Uhr
Mittwoch: 11 - 16 Uhr
Donnerstag: 11 - 16 Uhr
Freitag: 11 - 15 Uhr
Samstag: 11 - 16 Uhr
Sonntag: 11 - 16 Uhr
Wegbeschreibung

What Our Besties Are Saying

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“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.