From Closet Core Patterns:
The Céline Bralette is a comfortable, soft cup triangle bralette with light support and a bust dart for shaping. Designed for everyday wear and casual lounging, create a wardrobe of unique bralettes by playing with fabric and construction combinations.
View A features a mesh or lace insert along the neckline, a fold over elastic finish, uncovered plush-back underbust elastic and a curved back band with bra strap sliders in the front. View B is a minimalist style, with a clean-finish neckline, underbust elastic wrapped in matching fabric, and adjustable straps with back sliders.
Suggested fabrics: Cotton spandex, bamboo/rayon spandex blends, stretch modal, scuba, swim lycra, stretch lace and stretch mesh can be used for both the cups and the back band. Power mesh can be used for the back band if you'd like additional support. If you'd like to add a lace panel, use stretch or rigid lace with a scalloped edge, a minimum of 4" (10cm) wide.
Sizing: Our 0-20 range has two cup sizes per size (A/B or C/D). Our 14-32 range has two cup sizes per size (C/D or E/F).