How to Choose the Right Curtain Lining: A Guide to Better Light Control, Comfort, and Style

When it comes to choosing custom curtains, the fabric is just one piece of the puzzle. The lining you select plays a big role in how your curtains perform—from how much light they block to how well they insulate your space. At THREE GIRLS, we offer two main options: our signature 100% blackout lining powered by ZeroLight TriCore™ technology, and unlined curtains for specific use cases. Here’s how to decide what’s best for your home.

What Is Blackout Curtain Lining?

If you’re serious about light control, blackout lining is a must. Our ZeroLight TriCore™ Technology blackout lining uses advanced triple-layer technology to block 100% of incoming light—perfect for bedrooms, nurseries, media rooms, or anyone who wants better sleep and more privacy.

Key Features:
Color: Classic white – works with any curtain fabric
Material: 100% polyester
Weight: 210 GSM – medium weight for a good drape
Light Blocking: Full 100% blackout
Technology: Triple-layer ZeroLight TriCore™
Care: Machine washable in cold water

Why Customers Love It:
✔ Total darkness – no more early morning sun or streetlights
✔ Keeps rooms cooler in summer and warmer in winter
✔ Blocks UV rays to protect your furniture
✔ Sound-dampening to reduce outside noise
✔ Free from harmful chemicals

Design Note:
Our blackout lining is sewn along the sides of the curtain panel for full coverage, while the bottom remains unlined to maintain smooth draping.

When to Choose Unlined Curtains

Unlined curtains are made from a single layer of face fabric. They’re lighter and more breathable—but offer minimal privacy and light blocking.

We only recommend unlined curtains if:

You’re ordering sheer curtains intended to let light through
Your chosen fabric is already 100% blackout on its own

Not recommended for standard fabrics, especially in bedrooms or media rooms. If you need real performance—go lined.

Lined vs. Unlined: Which Is Right for You?

Pro Tip: If you’re unsure, blackout lining is always a safe bet—it provides more flexibility, comfort, and peace of mind.

Final Thoughts

At THREE GIRLS, we believe your curtains should do more than just look good. That’s why we engineered our ZeroLight TriCore™ Technology lining to deliver total light control, thermal comfort, and everyday durability—while staying beautiful and easy to care for.

Still unsure which option to choose? Reach out to our team—we’re happy to help you customize the perfect curtain solution for your home.