Welcome back to Sewing Tutorials! If you missed Part 1, go catch up here — then come back because Part 2 is where things get really good.


Part 2 of the Cassia Leotard tutorial is officially live and oh my goodness, we are getting into the good stuff.

We're talking darts. We're talking sequin mesh. We're talking that satisfying moment when your lining goes in with fold over elastic and suddenly — suddenly — your leotard starts looking like an actual leotard.

Watch it right here:

▶ Watch Part 2


What You'll Learn in Part 2

1. Making Darts to Create the Bust Shape

This is the step that takes your Cassia from flat fabric to a design that actually fits and flatters the body. Darts are one of those techniques that can feel intimidating at first, but once you understand why they work, they become one of your most powerful tools as a sewist. In this video I walk you through the process step by step so you can see exactly how it's done.

2. Sewing Sequin Mesh Fabric

Sequin mesh is stunning. It's also a little extra — in the best way. In Part 2 I show you how to handle this fabric with confidence, so you get clean results without the chaos. Trust me, a few key tricks make all the difference.

3. Adding the Lining with Fold Over Elastic

This is the step that really brings everything together. The lining gives your Cassia that polished, professional finish, and fold over elastic is the technique that makes it happen beautifully. I take you through the process so you can follow along at home.


A Quick Note on How These Tutorials Work

In the YouTube tutorials, I show you the step-by-step process — the what and the why — but I don't film the actual sewing of the leotard itself. That level of detail lives inside the Cassia & Acacia Mini Course and the Leotard Wardrobe Vault, where you get full video walkthroughs, patterns, manuals and everything you need to actually sew your Cassia from start to finish.

Think of the YouTube series as your map. The courses are your complete journey.


Ready to Go Deeper?

If you're watching these tutorials and thinking yes, I want to actually make this — here's exactly where to go:

✨ The Cassia & Acacia Mini Course

Grab the Mini Course here →

This is your complete guide to sewing not one but two stunning halter-neck leotards from a single pattern. The Cassia with her beautiful strap and ring details, and the Acacia — her bold, dramatic sister with a deeper keyhole and minimal straps that are pure fire. You get printable patterns in XS–XL, video tutorials, a full directions manual, and fabric guidance for working with sequin and stretch. Two unforgettable leotards, one powerhouse course.

🔑 The Leotard Wardrobe Vault

Explore the Vault here →

Want access to an entire library of leotard designs, courses, and tutorials all in one place? The Leotard Wardrobe Vault is your all-access pass. Get instant access here →


Drop your questions in the YouTube comments — I love hearing from you. And if you make your Cassia, please share it! I want to see every sequin, every dart, every gorgeous finished leotard. 🖤

Happy sewing, Sewing Tutorials


Missed Part 1? Start from the beginning here →

May 07, 2026 — Leonie Mosdell