Welcome to our store

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  • "Matching sets = instant confidence boost."

TRENDING

The set everyone is talking about

TRENDING
The Ultimate Chill Set – Cozy Me-Time Shorts & Oversized Everything Hoodie The Ultimate Chill Set – Cozy Me-Time Shorts & Oversized Everything Hoodie
$120.00
$120.00
Description:Elevate your lounge game with The Ultimate Chill Set—a perfect blend of comfort and effortless style. Whether you're relaxing at home, running quick errands, or layering up for a cozy d...
The Everything Hoodie – Ultra-Soft Oversized Sweatshirt The Everything Hoodie – Ultra-Soft Oversized Sweatshirt
$75.00
$75.00
Description:Stay cozy and stylish with The Everything Hoodie—your new go-to for effortless comfort and laid-back style. Designed with a sleek, minimalist look, this hoodie is all about premium soft...
Me-Time Shorts – Soft Lounge & Everyday Wear Me-Time Shorts – Soft Lounge & Everyday Wear
$55.00
$55.00
Description:Experience the perfect blend of comfort and style with the Me-Time Shorts—designed for effortless wear, whether you're relaxing at home or stepping out in style. Premium Comfort: Made...

We Are Family

We’re a mom and two daughters with a simple mission: to create cute, comfy, and affordable matching sets for everyone. We believe fashion should be as flexible as you are. That’s why we let you mix and match sizes—because we know life isn’t one-size-fits-all.

Our designs are all about celebrating what we love: vibrant colors, cozy fabrics, and the kind of confidence that comes from feeling great in what you wear.

With a background in designing for brands like Topshop and Anthropologie, Tamar took her passion for fashion to the next level, creating a line of women’s wear that was stylish yet practical. Now, we’re pouring that experience into crafting crave-worthy matching sets for the whole family.

Join us in celebrating comfort, color, and confidence—because matching never felt so good!

We Are Family
FAQ'S FAQ'S

FAQ'S

What sizes do you offer?
  • We currently offer sizes XS through M for most items. Check our Size Chart for detailed measurements and fit tips.
How can I track my order?
  • After we ship your order, we’ll email you a tracking link. Click to see real-time updates on your package’s journey.
What types of Payment methods do you accept?

We accept Visa, Mastercard & American Express. We also accept Shop Pay & Google Pay.

Can I change or cancel my order after it’s placed?
  • We process orders quickly, but if you need to make a change, email questions@thegirltheory.com ASAP. If your order hasn’t shipped, we’ll do our best to update or cancel it.
How do I care for my clothes?

We recommend machine-washing cold and tumble-drying low or hang-drying. This helps maintain the fabric’s softness and keeps prints looking fresh.

What payment methods do you accept?
  • We accept major credit cards (Visa, MasterCard, American Express), PayPal, and select digital wallets like Apple Pay and Google Pay.
Can I use multiple promo codes at once?

Our system can only apply one promo code per order. If you have more than one, pick the one that gives you the best discount!

Do you restock sold-out items?
  • We try to restock popular items when possible. Sign up for our newsletter or follow us on social media for restock alerts.
Where are your products made?
  • We partner with trusted manufacturers who share our commitment to quality and responsible production. For specific details, check each product’s info page.
How do I contact customer support?
  • Email us at questions@thegirltheory.com or send us a DM via our Insta. We typically respond within 24 hours on business days.
GIrly thing

World Of Coziness

Our Promise

Unmatched Comfort & Quality

We promise to provide you with the coziest and most stylish hoodies, shorts, and matching sets, crafted from premium materials that feel as good as they look.
Trendy & Unique Designs

We promise to keep you ahead of the fashion game with chic and fun designs that perfectly match your vibe, making every outfit uniquely yours.
Customer Happiness First

We promise to prioritize your satisfaction by offering excellent customer service, easy returns, and a seamless shopping experience, because you deserve the best!