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

NEW ARRIVALS

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The Sale Edit

Sunday Best is pleased to offer an additional 20% off select sale styles from Saturday, January 3, 2026 through Saturday, January 10, 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.

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The Pieces They Actually Wear

The basics they grab every day — now on sale.

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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 fromSaturday, January 3, 2026 through Monday, January 6, 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.

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

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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