I recently tested Heidi & Finn's newest pattern, the Ballon Top. Here is a definition of the word "ballon:" the lightness and grace of movement that make a dancer appear buoyant. Perfectly appropriate for this lovely top.
So in a nutshell, the top is a basic tee with 3/4 or short sleeves embellished with 2 layers of chiffon (or any other type of light, floaty fabric). The two layers of chiffon gradually lengthens in the back to form a high-low hem.
I really do think this top defines the Heidi & Finn style, pretty but practical, functional and playful, simple and elegant. The pattern includes a separate guide for the overlay fabrics and explains the different types of fabrics that can be used along with links to on-line shops. Christine also does a great job of holding your hands through the process of sewing with chiffon.
Both the knit and the chiffon are from JoAnn Fabrics. You can read more about this pattern on the Heidi & Finn blog, along with more tester pictures.