From Waves & Wild:
The Superstar Bra is a lounge bra that’s so comfortable you’ll never want to take it off! It has a crossover back and three band options – regular jersey, cropped top jersey and elastic.
This pattern is suitable for enthusiastic beginners. An overlocker/serger will create the neatest finish but importantly a regular sewing machine is all you need for all options.
Recommended Fabrics: Light/medium knit fabrics with 50%+ stretch and strong return are required. Return means your fabric returns to its original size and shape after being stretched. Possible fabrics include cotton/Lycra jersey and athletic polyester/Lycra jersey. You can use the same fabric for your outer and lining. Additionally, you can provide extra support by sewing a middle layer of power mesh.
Sizes: Ten sizes, from XXS-5XL, A-H cup (approx. UK 6-30/32).
There are detailed instructions on how to pick the best size.